NL78690C - - Google Patents

Info

Publication number
NL78690C
NL78690C NL78690DA NL78690C NL 78690 C NL78690 C NL 78690C NL 78690D A NL78690D A NL 78690DA NL 78690 C NL78690 C NL 78690C
Authority
NL
Netherlands
Application number
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.)
Publication of NL78690C publication Critical patent/NL78690C/xx

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M15/00—Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP
    • H04M15/08—Metering calls to called party, i.e. B-party charged for the communication
NL78690D 1949-04-26 NL78690C (xx)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US89750A US2550585A (en) 1949-04-26 1949-04-26 Telephone identification circuit

Publications (1)

Publication Number Publication Date
NL78690C true NL78690C (xx)

Family

ID=22219408

Family Applications (1)

Application Number Title Priority Date Filing Date
NL78690D NL78690C (xx) 1949-04-26

Country Status (6)

Country Link
US (1) US2550585A (xx)
BE (1) BE495130A (xx)
DE (1) DE822411C (xx)
FR (1) FR1017517A (xx)
GB (1) GB683911A (xx)
NL (1) NL78690C (xx)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2708690A (en) * 1950-08-05 1955-05-17 Automatic Elect Lab Party line telephone systems
US2872519A (en) * 1952-03-24 1959-02-03 North Electric Co Automatic telephone system
US2809235A (en) * 1953-02-11 1957-10-08 Gen Dynamics Corp Telephone system
US2820100A (en) * 1954-02-26 1958-01-14 Bell Telephone Labor Inc Station identification device
US2779823A (en) * 1954-09-17 1957-01-29 Ericsson Telefon Ab L M Connecting device in automatic telephone systems

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2299513A (en) * 1940-06-06 1942-10-20 Ass Telephone & Telegraph Co Telephone or like system
US2270246A (en) * 1940-09-20 1942-01-20 Bell Telephone Labor Inc Telephone system
BE477685A (xx) * 1940-09-20
US2252766A (en) * 1940-10-17 1941-08-19 Bell Telephone Labor Inc Signaling system
US2344612A (en) * 1942-06-27 1944-03-21 Bell Telephone Labor Inc Electric signaling

Also Published As

Publication number Publication date
DE822411C (de) 1951-11-26
US2550585A (en) 1951-04-24
GB683911A (en) 1952-12-10
FR1017517A (fr) 1952-12-11
BE495130A (xx)

Similar Documents

Publication Publication Date Title
AT166754B (xx)
FR65906E (xx)
AT193848B (xx)
FR963555A (xx)
BE487723A (xx)
BE487289A (xx)
NL78690C (xx)
BE155588A (xx)
BE437616A (xx)
BE449134A (xx)
BE457200A (xx)
BE476015A (xx)
BE476643A (xx)
BE476829A (xx)
BE479156A (xx)
BE487648A (xx)
BE480597A (xx)
BE480618A (xx)
BE482756A (xx)
BE487564A (xx)
BE483689A (xx)
BE485768A (xx)
BE485770A (xx)
BE486689A (xx)
NL80136C (xx)