FR844373A
(en )
1939-07-24
Improvements to frequency-selective electrical systems
CH207276A
(en )
1939-10-15
Analgesia device.
CH218508A
(en )
1941-12-15
Lighting system.
FR835343A
(en )
1938-12-19
Improvements to electrical systems
FR862583A
(en )
1941-03-10
Transport facility for woodworking
DK57677C
(en )
1940-06-10
Electrical Signaling Cable.
DK65436C
(en )
1947-02-24
Device for Speed Switches for Electrical Connection Systems.
AT152515B
(en )
1938-02-25
Cable spacer clamp.
DK59271C
(en )
1941-12-08
Transmission systems for electrical signals.
CH203232A
(en )
1939-02-28
Contact clamp for connecting electrical lines to installation devices.
DK59299C
(en )
1941-12-15
Selector for electrical connection systems.
DK59915C
(en )
1942-06-29
Electrical Remote Signaling System.
DK59461C
(en )
1942-02-09
Electrical Remote Signaling System.
DK57669C
(en )
1940-06-03
Electrical Remote Signaling System.
FR841831A
(en )
1939-05-31
Slotted screw terminal for electrical pipes
FR844098A
(en )
1939-07-18
Electrical communications systems
DK65544C
(en )
1947-08-25
Device for electrical signaling systems.
CA367985A
(en )
1937-08-10
Electrical conduit system
CH203262A
(en )
1939-02-28
Circuit arrangement for telex switching systems.
DK55317C
(en )
1938-10-10
Electrical Block Capacitor.
CA364770A
(en )
1937-03-16
Electric wiring system
CA366770A
(en )
1937-06-15
Electrical sequence operation system
CA366772A
(en )
1937-06-15
Electrical sequence operation system
DK54117C
(en )
1938-01-03
Feed device at Rundsave for Brændeskæring.
DK54772C
(en )
1938-05-23
Clamping device for meat mincers.