DK51736C
(en )
1936-06-08
Magnetic system, in particular for electroacoustic apparatus.
CH171532A
(en )
1934-08-31
Telephone control set in automatic telephone system.
CH234264A
(en )
1944-09-15
Telephone system.
DK53821C
(en )
1937-11-08
Coin apparatus for Telephone systems.
DK52223C
(en )
1936-09-28
Electromagnetic recording apparatus, in particular for recording sound tracks.
GR4540B
(en )
1934-01-30
ADVERTISING SYSTEM, ATMOVISION.
DK55084C
(en )
1938-08-15
Telephone system.
DK50556C
(en )
1935-08-19
Support Buffer for Bicycles.
DK52622C
(en )
1937-01-25
Apparatus for generating sound signals for vehicles, in particular motor vehicles.
DK51855C
(en )
1936-07-06
Acoustic Apparatus.
DK54244C
(en )
1938-01-31
Acoustic Apparatus.
DK52812C
(en )
1937-03-15
Selector for Telephone system.
DK52314C
(en )
1936-10-19
Feeding apparatus for Receivers, Amplifiers and similar Apparatus.
DK50497C
(en )
1935-08-05
Apparatus for Stamping Tickets.
DK52903C
(en )
1937-04-05
Electrodynamic Apparatus.
DK50697C
(en )
1935-09-30
Antenna system.
DK52905C
(en )
1937-04-05
Signal system.
DK50461C
(en )
1935-07-22
Rinse machine, especially for Plates and Photographs.
DK51679C
(en )
1936-05-25
Electrical Central System.
ES133245A3
(en )
1934-03-16
Toothbrush system, interchangeable.
ES134871A1
(en )
1934-08-16
An announcing device.
ES136249A1
(en )
1935-02-01
An improved system apparatus for telephone calls.
DK51685C
(en )
1936-05-25
System for spatial radio bearing.
DK51862C
(en )
1936-07-13
System for spatial radio bearing.
DK52873C
(en )
1937-03-30
Teletype communication system.