DK42695C
(en )
1930-08-04
Selector device for automatic Telephone systems.
DK41793C
(en )
1930-03-10
Selector for automatic Telephone Systems.
DK43996C
(en )
1931-04-13
Circuit arrangement for automatic telephone systems.
DK45359C
(en )
1932-03-07
Circuit Device for Automatic Telephone Systems.
DK46657C
(en )
1932-12-19
Circuit device for automatic Telephone Systems.
DK44558C
(en )
1931-09-07
Circuit device for automatic telephone systems.
DK41644C
(en )
1930-02-17
Device for automatic telephone systems.
GR1383B
(en )
1926-12-31
AUTOMATIC TELEPHONE SYSTEMS.
DK45941C
(en )
1932-07-18
Circuit arrangement for automatic telephone systems.
DK40360C
(en )
1929-06-24
Device for Controlling Automatic Selectors in Telephone Systems.
DK35360C
(en )
1925-12-07
Automatic Telephone System.
ES93024A1
(en )
1925-06-16
Improvements in automatic telephone systems.
DK43546C
(en )
1930-12-29
Selector for Use in Automatic Telephone Systems.
GR1446B
(en )
1927-03-09
AUTOMATIC TELEPHONE SYSTEM.
DK45217C
(en )
1932-02-08
Circuit arrangement for an automatic telephone system.
DK46085C
(en )
1932-08-22
Circuit device for automatic telephone subscriber stations.
DK41152C
(en )
1929-11-25
Selector for fully or semi-automatic Telephone Systems.
ES94412A1
(en )
1925-11-01
Improvements in automatic telephone systems.
DK45974C
(en )
1932-07-25
Circuit arrangement for fully or semi-automatic Telephone Systems.
DK45983C
(en )
1932-07-25
Circuit arrangement for fully or semi-automatic Telephone Systems.
DK45164C
(en )
1932-02-01
Circuit arrangement for fully or semi-automatic Telephone Systems.
DK45641C
(en )
1932-05-09
Circuit arrangement for fully or semi-automatic Telephone Systems.
DK47425C
(en )
1933-06-12
Circuit arrangement for fully or semi-automatic Telephone Systems.
DK45984C
(en )
1932-07-25
Circuit arrangement for fully or semi-automatic Telephone Systems.
DK46218C
(en )
1932-09-19
Circuit arrangement for fully or semi-automatic Telephone Systems.