NL7701785A - INTERCOM SYSTEM. - Google Patents

INTERCOM SYSTEM.

Info

Publication number
NL7701785A
NL7701785A NL7701785A NL7701785A NL7701785A NL 7701785 A NL7701785 A NL 7701785A NL 7701785 A NL7701785 A NL 7701785A NL 7701785 A NL7701785 A NL 7701785A NL 7701785 A NL7701785 A NL 7701785A
Authority
NL
Netherlands
Prior art keywords
intercom system
intercom
Prior art date
Application number
NL7701785A
Other languages
Dutch (nl)
Original Assignee
Werner Haage
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Werner Haage filed Critical Werner Haage
Publication of NL7701785A publication Critical patent/NL7701785A/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M9/00—Arrangements for interconnection not involving centralised switching
    • H04M9/04—Arrangements for interconnection not involving centralised switching involving a separate line for each pair of parties
NL7701785A 1976-02-20 1977-02-18 INTERCOM SYSTEM. NL7701785A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19762606836 DE2606836C2 (en) 1976-02-20 1976-02-20 Intercom

Publications (1)

Publication Number Publication Date
NL7701785A true NL7701785A (en) 1977-08-23

Family

ID=5970397

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7701785A NL7701785A (en) 1976-02-20 1977-02-18 INTERCOM SYSTEM.

Country Status (6)

Country Link
AT (1) AT350641B (en)
BE (1) BE851469A (en)
CH (1) CH614577A5 (en)
DE (1) DE2606836C2 (en)
FR (1) FR2341991A1 (en)
NL (1) NL7701785A (en)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2744966A (en) * 1950-10-05 1956-05-08 Executone Inf Sys Inc Intercommunication system
DE1171019B (en) * 1962-07-26 1964-05-27 Licentia Gmbh Intercom
DE1219991B (en) * 1963-02-26 1966-06-30 Haruo Nogami Circuit arrangement for line dialer telephone systems
DE2435345C2 (en) * 1974-07-23 1983-12-01 Philips Patentverwaltung Gmbh, 2000 Hamburg Circuit arrangement for wired intercom and / or intercom systems

Also Published As

Publication number Publication date
CH614577A5 (en) 1979-11-30
BE851469A (en) 1977-06-16
DE2606836B1 (en) 1977-07-28
DE2606836C2 (en) 1978-03-02
ATA96577A (en) 1978-11-15
FR2341991A1 (en) 1977-09-16
AT350641B (en) 1979-06-11

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Legal Events

Date Code Title Description
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BB A search report has been drawn up
BV The patent application has lapsed