CH193379A
(en )
1937-10-15
Automatic firearm.
CH184911A
(en )
1936-06-30
Automatic firearm.
CH202120A
(en )
1938-12-31
Level control circuit for television amplifiers.
CH219816A
(en )
1942-02-28
Rotary selector in telephone system.
CH215526A
(en )
1941-06-30
Selector stage for telecommunications exchange systems.
CH236666A
(en )
1945-02-28
Telecommunications exchange system.
CH199333A
(en )
1938-08-15
Circuit arrangement for telephone networks with several groups of extensions.
CH234264A
(en )
1944-09-15
Telephone system.
CH230160A
(en )
1943-12-15
Circuit arrangement for telephone exchange systems.
AT147082B
(en )
1936-09-25
Circuit arrangement for semi-automatic telephone systems.
DK55113C
(en )
1938-08-22
Selector for automatic Telephone systems.
CH180447A
(en )
1935-10-31
Base for firearms.
CH240076A
(en )
1945-11-30
Telephone switchboard.
DK58726C
(en )
1941-06-03
Telegraph selector system.
CH211215A
(en )
1940-08-31
Circuit arrangement for automatic and semi-automatic telephone systems.
DK53294C
(en )
1937-07-12
Telephone system with Selector operation.
DK53478C
(en )
1937-08-23
Telephone system with Selector operation.
DK58123C
(en )
1940-11-04
Machine-operated Selector for automatic telephone systems.
AT148657B
(en )
1937-02-25
Circuit arrangement for payphones with network group traffic.
AT136593B
(en )
1934-02-26
Circuit arrangement for group stations.
DK52812C
(en )
1937-03-15
Selector for Telephone system.
CH185792A
(en )
1936-08-15
Telecommunication system.
CH196047A
(en )
1938-02-28
Compressor for chillers.
DK51417C
(en )
1936-03-23
Automatic or semi-automatic Telephone exchange.
DK54764C
(en )
1938-05-23
Selector, especially for automatic telephone systems.