NL7505907A
(en )
1975-08-29
COMMUNICATION SYSTEM WITH TIME DIVIDING.
DK106503C
(en )
1967-02-13
Telephone set.
BE595321A
(en )
1961-03-23
Voice frequency receivers.
FI37044A
(en )
1967-07-10
Trådningsplatta för teletekniska, speciellt telefonanläggningar
DK107360C
(en )
1967-05-22
Frequency parts.
DK99150C
(en )
1964-06-29
Coupling in telecommunication systems, in particular telephony systems with frequency selection.
DK97830C
(en )
1964-01-27
Telephone set.
BE586996A
(en )
1960-05-16
Nickel plating refinements.
BE577233A
(en )
1959-07-16
Elastic coupling.
DK98073C
(en )
1964-02-24
Automatic electronic telecommunication center.
BE588949A
(en )
1960-09-23
Common telephone line.
BE574887A
(en )
1959-07-20
Loudspeaker telecommunication system.
DK94754C
(en )
1962-11-12
Irrigation pumps.
DK106232C
(en )
1967-01-09
Telecommunication systems, in particular house telephone systems.
FR1260421A
(en )
1961-05-05
Telecommunications installation, in particular telephony, with frequency selection
CH379585A
(en )
1964-07-15
Circuit arrangement for telecommunications, in particular telephone systems with frequency selection
DK97295C
(en )
1963-11-11
Telephone set.
DK101992C
(en )
1965-06-21
Connecting equipment, in particular for telephone systems.
DK97760C
(en )
1964-01-20
Loudspeaker telephone system with several main stations.
DK96796C
(en )
1963-09-02
Coupling network in telephone exchange systems.
BE576667A
(en )
1959-07-01
Elastic coupling.
DK98902C
(en )
1964-06-01
Thermal relay, in particular for use in high frequency telecommunications technology.
DK100575C
(en )
1964-12-14
Telephone intercom.
AU222270B2
(en )
1958-04-17
Arrangement forthe supervision of line conditions in telecommunication systems, especially in telephone systems
DK97137C
(en )
1963-10-21
Automatic telephone exchange.