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The Pamphlet Collection of Sir Robert Stout: Volume 41

Telegraphic Apparatus and Processes

Telegraphic Apparatus and Processes.

Class 63.—Appliances for telegraphs based on the transmission of light, sound, &c.

Apparatus for the electric telegraph, posts, wires, stretchers, &c.

Batteries and apparatus for sending and receiving messages.

Bells and electric signals.

Telegraphs for military purposes. Objects appertaining to telegraphy: lightning conductors, commutators, prepared paper for printing messages and for sending autographic messages.

Special apparatus for pneumatic telegraphy.