|
SE71253C1
(enrdf_load_stackoverflow)
|
|
|
|
US1932932A
(en)
|
|
Start-stop telegraph system and apparatus therefor
|
|
US1800973A
(en)
|
|
Mechanical translating apparatus for printing-telegraph systems
|
|
US2110506A
(en)
|
|
Start-stop telegraph
|
|
US2585041A
(en)
|
|
Printing telegraph receiver
|
|
US1587389A
(en)
|
|
Condenser
|
|
US2206665A
(en)
|
|
Communication system
|
|
US2150240A
(en)
|
|
Communication system
|
|
US2406044A
(en)
|
|
Selecting mechanism
|
|
US2537168A
(en)
|
|
Code converter
|
|
GB364264A
(en)
|
|
Improvements in telegraphic systems
|
|
US2491790A
(en)
|
|
Automatic telephone calling system
|
|
US2189545A
(en)
|
|
Keyboard perforator and counter
|
|
US1177694A
(en)
|
|
Telegraphic type-printing receiver.
|
|
US2331916A
(en)
|
|
Photographic apparatus
|
|
US1289900A
(en)
|
|
Telegraph-transmitter.
|
|
GB392572A
(en)
|
|
Improvements in variable speed gearing
|
|
US2266028A
(en)
|
|
Printing telegraph transmitter and perforator
|
|
US1984317A
(en)
|
|
Keyboard perforator and counter
|
|
DE608546C
(de)
|
|
Sender fuer Fernschreibmaschinen
|
|
US1077706A
(en)
|
|
Range-transmitter.
|
|
US2538849A
(en)
|
|
Multiple clutch for facsimile scanning machines
|
|
US1773958A
(en)
|
|
Telegraphic receiving apparatus
|
|
GB542010A
(en)
|
|
Improvements in and relating to automatic telephone or like systems
|
|
US1452527A
(en)
|
|
Transmitting apparatus for electric telegraphs
|