DK14975C
(da )
1911-08-14
Elektromagnetisk Vælger til Brug i Partstelefonsystemer, Signaleringssystemer, Telegrafsystemer og lignende.
GB191306292A
(en )
1913-08-07
Improvement in Telegraph and other Signalling and the like Apparatus.
GB191023669A
(en )
1911-07-27
Improvements in Automatic Telephone Systems.
GB107042A
(en )
1917-06-11
Improvements in Telephone Systems.
GB102680A
(en )
1916-12-21
Improvements in Telephone Systems.
GB103173A
(en )
1917-01-18
Improvements in Telephone Systems.
GB107236A
(en )
1917-06-20
Improvements in Telephone Systems.
AU82216B
(en )
1917-03-20
Improvements. in telephone systems
GB191117634A
(en )
1912-04-11
Improvements in Inductive Wireless Telephone and Telegraphic Installations.
GB191112117A
(en )
1911-08-03
Improvements in Semi-automatic Telephone Exchange Systems.
GB191320773A
(en )
1914-08-07
Improvements in Automatic Telegraph Systems.
DK14345C
(da )
1911-03-13
Projektil til Signaleringsøjemed og lignende.
GB191304618A
(en )
1914-02-19
Improvements in Selective Signalling Systems.
GB191307221A
(en )
1913-11-27
Improvements in Telephone Systems.
DK16142C
(da )
1912-07-01
Anordning ved Apparater til Markering af Signaler ved Telefoncentraler, Telefonomstiller og lignende.
DK16630C
(da )
1912-11-04
Tovremme, Tovbaand og lignende.
DK19420C
(da )
1914-10-26
Ringeanordning til Kirkeklokker og lignende.
DK32814C
(da )
1924-02-04
Fremgangsmaade og System til Signalering.
CH74493A
(de )
1917-03-01
Einrichtung zum Auswählen und Anrufen von an gemeinsamen Leitungen liegenden Fernsprech-, Signal- oder Telegraphenstationen mit Hilfe schrittweise fortbewegter Schaltwerke
GB191120787A
(en )
1912-09-19
Improvements in the Working of Telegraph and Telephone Circuits and the like.
GB191022959A
(en )
1911-06-08
Improvements in Automatic Telephone Systems.
GB110354A
(en )
1918-07-25
Telephone Exchange Systems.
GB109815A
(en )
1918-09-19
Telephone Exchange Systems.
GB104171A
(en )
1917-08-09
Improvements in Automatic Telephone Systems.
GB191320269A
(en )
1914-09-08
Improvements in and relating to Telegraphic Systems Employing the Morse Codes.