David R. Forshey / Welby G. Courtney

STANFORD:36105006336684

Welby G. Courtney / Natesa I. Jayaraman / Paul Behum

UOM:39015078483644

Coal mines and mining

Lung Cheng / Welby G. Courtney

UOM:39015078476705

Coal mines and mining

Welby G. Courtney / Lung Cheng / Edward F. Divers

UOM:39015078489989

Coal mines and mining

Nevin Greninger / Welby G. Courtney / Edward F. Divers

UOM:39015078489211

Coal mines and mining

Lung Cheng / Aldo L. Furno / Welby G. Courtney

UOM:39015078479543

Coal-cutting bits

Albert Lynn Johnson / Ann G. Kim / Charles D. Litton / Curtis H. Elder / David R. Forshey / David Schlain / George J. Conroy / Gordon H. Dechman / James R. Aggson / John C. Edwards / John C. Franklin / John Durkin / Joseph Cervik / Joseph E. Matta / M. E. Poad / Natesa I. Jayaraman / Richard Hammer / Wallace W. Key / Albert Sainato / Aldo L. Furno / Dennis Grigal / Frank X. McCawley / Galen G. Waddell / Henry E. Perlee / John C. LaScola / M. C. Irani / Martin Hertzberg / Meng-Cherng Sun / Thomas O. Meyer / Welby G. Courtney / Earl L. Phillips / Fred N. Kissell / Gerald R. Smith / Joseph M. Kutcha / Maurice Deul / Robert C. Bates / Robert F. Chaiken

OSU:32435025835208

Cables

B. T. Brady / Benjamin W. Haynes / Danton L. Paulson / Davis E. Traut / Dominic Montagna / Donald I. Kurth / Edward F. Divers / Howard W. Kilau / Peter F. Steidl / Raymond M. Stateham / Robert W. Freedman / Stephen W. Lambert / Welby G. Courtney / Ivan Leroy Nichols / Benjamin I. Ferber / Daryl E. Radcliffe / Herbert S. Caldwell / James C. McConnell / Joseph J. Janosik / Michael A. Trevits / Natesa I. Jayaraman / Robert D. Schmidt / Victor R. Spironello / W. E. Anable / Don C. Seidel / Paul Behum / Robert S. Kaplan / Stephen L. Law / Warren M. Mahan / Wayne H. Duerr / Willard L. Hunter

OSU:32435025835182

Methane

Welby G. Courtney / Frederick R. Duke

UOM:39015086503235

Metal ions

Nevin Greninger / Welby G. Courtney / Helen Lang / United States. Bureau of Mines

UOM:39015078472480

Coal mines and mining

United States. Bureau of Mines / Welby G. Courtney / J. Kost

OCLC:148976921

David R. Forshey / Welby G. Courtney

OCLC:148957176

Condensation

Welby G. Courtney

OCLC:1139481551

Welby G. Courtney / Natesa I. Jayaraman / Paul Behum

OCLC:254061701

Welby G. Courtney / Lung Cheng / Edward F. Divers

OCLC:247198109

Lung Cheng / Aldo L. Furno / Welby G. Courtney

LCCN:87600265

Coal-cutting bits

Welby G. Courtney

OCLC:1139480501

Coal-mining machinery

Curtis H. Elder / David R. Forshey / Gordon H. Dechman / James L. Holman / James R. Aggson / John C. Edwards / John Darkin / K. O. Bennington / Kenneth J. Miller / Lawrence W. Scott / Melvin E. Poad / Richard Hammer / S. Ralph Austin / Galen G. Waddell / George J. Conroy / Henry E. Perlee / J. F. McIlwain / Meng-Cherng Sun / Michael John Ferrante / Robert F. Droullard / Welby G. Courtney / Earl L. Phillips / J. M. Stuve / L. A. Neumeier / Robert F. Chaiken

OCLC:3393793

Asbestos

United States. Bureau of Mines / N. Greninger / Welby G. Courtney

OCLC:148953877

Charles A. Seitz / James Philip Bennett / Nevin Greninger / R. S. Kalyoncu / Tobias W. Goodman / Joseph Cervik / Philip W. Holland / Welby G. Courtney / Edward F. Divers

OCLC:12974734

Boring

A. M. Stubbs / Bruce D. Hanson / C. Vaught / J. Drew Potts / Jack I. Paige / Jeffrey S. Walker / John C. Edwards / John C. LaScola / John J. Sammarco / Khamis Y. Haramy / L. D. Redden / Lung Cheng / Michael R. Yenchek / P. W. Jeran / Paul D. Kovscek / Russell E. Griffin / B. W. Jong / Charles Darrell Taylor / John P. McDonnell / Kathleen M. Ford / M. J. Brnich / Peter G. Kovalchik / Rees D. Groves / Robert A. Jankowski / Vladimir Adamek / Welby G. Courtney / Don C. Seidel / Edward D. Thimons / George E. Niewiadomski / H. J. Kellner

LCCN:88600220

Chromium

Albert Lynn Johnson / Ann G. Kim / Charles D. Litton / Curtis H. Elder / David R. Forshey / David Schlain / George J. Conroy / Gordon H. Dechman / James R. Aggson / John C. Edwards / John C. Franklin / John Durkin / Joseph Cervik / Joseph E. Matta / M. E. Poad / Natesa I. Jayaraman / Richard Hammer / Wallace W. Key / Albert Sainato / Aldo L. Furno / Dennis Grigal / Frank X. McCawley / Galen G. Waddell / Henry E. Perlee / John C. LaScola / M. C. Irani / Martin Hertzberg / Meng-Cherng Sun / Thomas O. Meyer / Welby G. Courtney / Earl L. Phillips / Fred N. Kissell / Gerald R. Smith / Joseph M. Kutcha / Maurice Deul / Robert C. Bates / Robert F. Chaiken

OSU:32435025835208

Cables

Nevin Greninger / Welby G. Courtney / Helen Lang / United States. Bureau of Mines

UOM:39015078472480

Coal mines and mining

David R. Forshey / Welby G. Courtney

UOM:39015078482992

Condensation

Nevin Greninger / Welby G. Courtney / Edward F. Divers

UOM:39015078489211

Coal mines and mining

Lung Cheng / Welby G. Courtney

UOM:39015078476705

Coal mines and mining

Lung Cheng / Aldo L. Furno / Welby G. Courtney

UOM:39015078479543

Coal-cutting bits

Welby G. Courtney / Lung Cheng / Edward F. Divers

UOM:39015078489989

Coal mines and mining

B. T. Brady / Benjamin W. Haynes / Danton L. Paulson / Davis E. Traut / Dominic Montagna / Donald I. Kurth / Edward F. Divers / Howard W. Kilau / Peter F. Steidl / Raymond M. Stateham / Robert W. Freedman / Stephen W. Lambert / Welby G. Courtney / Ivan Leroy Nichols / Benjamin I. Ferber / Daryl E. Radcliffe / Herbert S. Caldwell / James C. McConnell / Joseph J. Janosik / Michael A. Trevits / Natesa I. Jayaraman / Robert D. Schmidt / Victor R. Spironello / W. E. Anable / Don C. Seidel / Paul Behum / Robert S. Kaplan / Stephen L. Law / Warren M. Mahan / Wayne H. Duerr / Willard L. Hunter

OSU:32435025835182

Methane

Welby G. Courtney

UOM:39015078458430

Coal-cutting bits