Duplex Telegraphy

By

Cracknell, Edward Charles 1831-1893

Type

Article

Date of Publication

1874-05-20

Original Publication

Transactions of the Royal Society of New South Wales

Volume

8

Pages

1--2

Contributed by

BHL Australia

Language

English

Published by

Sydney The Society 1868-1875

Identifiers

DOI: https://doi.org/10.5962/p.346158