AT126423B
(en )
1932-01-25
Compensation procedures for cables, in particular telephone cables.
CH150035A
(en )
1931-10-15
Edge protection, especially for skis.
AT121480B
(en )
1931-02-25
Telephone system for train line.
DK40985C
(en )
1929-10-28
End branch cabinet for Telephone cables.
AT108973B
(en )
1928-02-25
Cable entry for telecommunication centers.
AT126879B
(en )
1932-02-25
Cable termination, in particular overhead line termination for high voltage cables.
DK35436C
(en )
1925-12-28
Procedure for Reducing Cross Speech in Telephone Cables.
FR664910A
(en )
1929-09-12
Multiple telephone cable
AT126872B
(en )
1932-02-25
Transformers, in particular for toy purposes.
AT131968B
(en )
1933-02-25
Self-collecting telephone station.
ES108059A1
(en )
1928-08-01
Connection device for line telephones with individual bus call.
CH145561A
(en )
1931-02-28
Telephone system with pupinized cables.
FR667992A
(en )
1929-10-25
Telephone cable
AT118954B
(en )
1930-09-10
Telephone dialer.
DK34950C
(en )
1925-08-31
Procedure for Reducing Cross Speech in Telephone Cables.
DK44254C
(en )
1931-06-22
Telephone cable for Firtraadsdrift.
ES116507A1
(en )
1930-02-16
Improvements in networks or telephone lines.
AT127076B
(en )
1932-02-25
Self-sellers, in particular for beverages.
AT141023B
(en )
1935-03-11
Telephone subscriber station, in particular for company management.
DK42194C
(en )
1930-05-12
Local telephone system with Line selectors.
DK43681C
(en )
1931-02-09
Telephone cable with Double four-wire twist.
DK45814C
(en )
1932-06-20
Device by Telephone System.
DK45989C
(en )
1932-07-25
Device by Telephone System.
CA277226A
(en )
1928-01-17
Telephone system
CA278581A
(en )
1928-03-13
Telephone system