CH231797A
(en )
1944-04-15
Telecommunication apparatus.
CH239732A
(en )
1945-11-15
Device for placing food rolls on flat combing machines.
CH229955A
(en )
1943-11-30
Circuit breaker.
CH246138A
(en )
1946-12-15
Circuit arrangement for switching on a teletype apparatus in existing teletype double current connections
CH235653A
(en )
1944-12-15
Tap changer on tap transformers.
CH210688A
(en )
1940-07-31
Device on telephone sets with microtelephones.
CH283265A
(en )
1952-05-31
Automatic telephone switchboard.
CH239100A
(en )
1945-09-15
Circuit arrangement for generating a constant current.
CH254092A
(en )
1948-04-15
Rectifier device for switching purposes.
CH232468A
(en )
1944-05-31
Type printing telegraph apparatus.
CH242711A
(en )
1946-05-31
Circuit breaker.
CH227014A
(en )
1943-05-15
Electrical control contactor.
CH237858A
(en )
1945-05-31
Device for switching capacitive circuits.
CH235871A
(en )
1944-12-31
Circuit arrangement for telex lines with writing traffic in two directions.
CH237265A
(en )
1945-04-15
Switching device for switching off high-voltage direct current.
CH229753A
(en )
1943-11-15
Relay breaker device on selector.
AT158046B
(en )
1940-02-26
Device for adjusting slide guides, in particular on cinema sets.
CH217864A
(en )
1941-11-15
Device for switching off direct current lines, in particular direct current high-voltage lines.
CH245533A
(en )
1946-11-15
Device with manual operation.
DK63352C
(en )
1945-04-09
Turning resistance for low current technical, especially high frequency technical, Purpose.
ES7154Y
(en )
1944-03-01
Perfected can opener.
CH291582A
(en )
1953-06-30
Electrical switching device on a machine tool.
CH210436A
(en )
1940-07-15
Arrangement for an optional call.
CH248947A
(en )
1947-05-31
Electrical contact device.
DK63530C
(en )
1945-05-28
Apparatus for Use in Telecommunications.