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

UOM:39015078483644

Coal mines and mining

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

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

UOM:39015078489989

Coal mines and mining

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

UOM:39015078479543

Coal-cutting bits

David R. Forshey / Welby G. Courtney

STANFORD:36105006336684

Welby G. Courtney / Frederick R. Duke

UOM:39015086503235

Metal ions

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

Welby G. Courtney / John Kost / Jay Colinet

UOM:39015077582909

Coal mines and mining

Welby G. Courtney

STANFORD:36105110634768

Coal-cutting bits

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

UOM:39015078472480

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

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

David R. Forshey / Welby G. Courtney

UOM:39015078482992

Condensation

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 / Natesa I. Jayaraman / Paul Behum

UOM:39015078483644

Coal mines and mining

Welby G. Courtney

UOM:39015078458430

Coal-cutting bits

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

UOM:39015078489989

Coal mines and mining

Welby G. Courtney / Frederick R. Duke

UOM:39015086503235

Metal ions

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 / John Kost / Jay Colinet

UOM:39015077582909

Coal mines and mining

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

UOM:39015078472480

Coal mines and mining

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

UOM:39015078489211

Coal mines and mining