CH210435A
(en )
1940-07-15
Multiple telephone system.
CH235154A
(en )
1944-11-15
Telecommunication system.
CH214340A
(en )
1941-04-15
Switching device.
CH235879A
(en )
1944-12-31
Telephone installation.
FR862370A
(en )
1941-03-05
Pipe coupling
CH218240A
(en )
1941-11-30
Television receiving device.
CH215389A
(en )
1941-06-30
Hose coupling device.
DK56190C
(en )
1939-05-22
Coupling device for Telephone systems with Two-part lines.
CH239303A
(en )
1945-09-30
Telecommunication system.
DK65694C
(en )
1947-09-29
Hose clamp.
CH203509A
(en )
1939-03-15
Device for connecting telescopic parts.
DK56106C
(en )
1939-05-01
Device for telephone systems with two-part cables.
FR845766A
(en )
1939-09-01
Faucet connector
CH214987A
(en )
1941-05-31
Screw coupling on welding cables.
DK57984C
(en )
1940-09-16
Telephone system.
DK60316C
(en )
1942-11-09
Connecting device for Telephone systems with Main and Sub-exchanges.
DK59364C
(en )
1942-01-05
Connecting device for Telephone systems with Main and Sub-exchanges.
DK59184C
(en )
1941-11-10
Connecting device for Telephone systems with Main and Sub-exchanges.
DK57511C
(en )
1940-04-22
Coupling device at Telegraph system.
DK59207C
(en )
1941-11-17
Electrical Coupling Device.
DK56728C
(en )
1939-09-25
Device at Kærnetønders Endebunde.
DK59674C
(en )
1942-04-20
Device at Telegraph transmission system with single-current operation.
DK60354C
(en )
1942-11-23
Coupling device for DC-magnetized inductances with relay effect.
DK57986C
(en )
1940-09-16
Device at Telephone Dissemination Locations.
DK62184C
(en )
1944-04-24
Connecting device for Telephone systems with Main and Sub-exchanges.