PATENTS - 3

PATENTS - 3

1874
154,788 District Telegraph Signal Box. . . . .April 2, 1874
168,004 Printing Telegraph . . . . . . . . . . May 22, 1874
166,859 Chemical Telegraphy. . . . . . . . . . June 1, 1874
166,860 Chemical Telegraphy. . . . . . . . . . June 1, 1874
166,861 Chemical Telegraphy. . . . . . . . . . June 1, 1874
158,787 Telegraph Apparatus. . . . . . . . . . Aug. 7, 1874
172,305 Automatic Roman Character
Telegraph. . . . . . . . . . . . . . . Aug. 7, 1874
173,718 Automatic Telegraphy . . . . . . . . . Aug. 7, 1874
178,221 Duplex Telegraphs. . . . . . . . Aug. 19, 1874
178,222 Duplex Telegraphs. . . . . . . . . . .Aug. 19, 1874
178,223 Duplex Telegraphs. . . . . . . . . . .Aug. 19, 1874
180,858 Duplex Telegraphs. . . . . . . . . . .Aug. 19, 1874
207,723 Duplex Telegraphs. . . . . . . . . . .Aug. 19, 1874
480,567 Duplex Telegraphs. . . . . . . . . . .Aug. 19, 1874
207,724 Duplex Telegraphs. . . . . . . . . . .Dec. 14, 1874
1875
168,242 Transmitter and Receiver for Automatic
Telegraph. . . . . . . . . . . . . . .Jan. 18, 1875
168,243 Automatic Telegraphs . . . . . . . . .Jan. 18, 1875
168,385 Duplex Telegraphs. . . . . . . . . . .Jan. 18, 1875
168,466 Solution for Chemical Telegraphs . . .Jan. 18, 1875
168,467 Recording Point for Chemical TelegraphJan. 18, 1875
195,751 Automatic Telegraphs . . . . . . . . . Jan. 18 1875
195,752 Automatic Telegraphs . . . . . . . . .Jan. 19, 1875
171,273 Telegraph Apparatus. . . . . . . . . . Feb 11, 1875
169,972 Electric Signalling Instrument . . . . Feb 24, 1875
209,241 Quadruplex Telegraph Repeaters (reissued
September 23, 1879, numbered
8906). . . . . . . . . . . . . . . . . Feb 24, 1875