Telegraph Code / Author of the Cotton telegraph code

NLS:V000683367

Cipher and telegraph codes

Telegraph Code / Author of the General telegraph code

NLS:V000683368

William Henry Davenport Adams / Author of The Mediterranean illustrated

UOM:39015063888013

India

Telegraph Code / Author of the Cotton telegraph code

NLS:V000683367

Cipher and telegraph codes

George Grant (author of Panorama of science.)

UVA:X000857202

Inventions

Unknown Author

9788896365786 / 8896365783

Technology & Engineering

9781493868230 / 1493868233

Juvenile Nonfiction