CH216566A
(en )
1941-08-31
Link for raceways.
DK60593C
(en )
1943-02-15
Device at Railway Security Facilities with Means for Transmitting Messages.
FR854923A
(en )
1940-04-27
Gas protection device, especially for children
CH232786A
(en )
1944-06-15
Device for secret messaging.
DK58158C
(en )
1940-11-11
Device for sending alarm signals.
DK60055C
(en )
1942-08-17
Telegraph system with means for blocking the dial.
DK59674C
(en )
1942-04-20
Device at Telegraph transmission system with single-current operation.
DK65886C
(en )
1947-11-17
Device for automatically sending image telegrams.
ES144047A1
(en )
1938-03-16
New closing system.
ES125958A1
(en )
1932-04-16
A new announcing device system.
DK78460C
(en )
1954-11-22
Electrical signaling system for transmitting oscillations with composite waveforms.
DK57165C
(en )
1940-01-15
Apparatus for Exchanging Skillemont.
ES149314A1
(en )
1942-05-01
NEW MECHANICAL SYSTEM FOR SECRET CLOSURE
DK57372C
(en )
1940-03-11
Device for preventing Wagons from sliding sideways.
DK57951C
(en )
1940-09-02
Device for preventing Wagons from sliding sideways.
DK62838C
(en )
1944-10-30
Foam Removal Device.
ES133337A1
(en )
1934-03-16
New security padlock system.
DK60814C
(en )
1943-04-19
Coin apparatus for Telephone systems with Central Energy.
DK40786C
(en )
1929-09-16
Apparatus for opening ampoules.
DK57990C
(en )
1940-09-16
Safety device at Stokere.
ES125708A1
(en )
1932-03-16
A new security device for doors.
DK60602C
(en )
1943-02-15
Disinfectant and Procedure for its Manufacture and Apparatus for Carrying Out the Procedure.
DK58281C
(en )
1940-12-23
Transport safety for Pendulure with Percussion.
DK60354C
(en )
1942-11-23
Coupling device for DC-magnetized inductances with relay effect.
DK50103C
(en )
1935-04-08
Device for securing railway crossings.