BE534368A - - Google Patents

Info

Publication number: BE534368A
Authority: BE; Belgium

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.)

1953-12-24

Publication of BE534368A publication Critical patent/BE534368A/xx

Classifications

- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q3/00—Selecting arrangements
- H04Q3/58—Arrangements providing connection between main exchange and sub-exchange or satellite
- H04Q3/62—Arrangements providing connection between main exchange and sub-exchange or satellite for connecting to private branch exchanges
- H04Q3/625—Arrangements in the private branch exchange

Landscapes

Physics & Mathematics (AREA)
Astronomy & Astrophysics (AREA)
General Physics & Mathematics (AREA)
Engineering & Computer Science (AREA)
Computer Networks & Wireless Communication (AREA)
Interface Circuits In Exchanges (AREA)
Telephonic Communication Services (AREA)

BE534368D 1953-12-24 BE534368A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
NL329213X		1953-12-24

Publications (1)

Publication Number	Publication Date
BE534368A true BE534368A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Family

ID=19784289

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
BE534368D BE534368A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)	1953-12-24

Country Status (6)

Country	Link
US (1)	US2904638A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
BE (1)	BE534368A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
CH (1)	CH329213A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DE (1)	DE943414C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
FR (1)	FR1117759A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
NL (2)	NL87345C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2365996A (en) *	1942-08-12	1944-12-26	Kellogg Switchboard & Supply	Private branch exchange automatic telephone system
US2358237A (en) *	1942-12-22	1944-09-12	Bell Telephone Labor Inc	Telephone system

0
- BE BE534368D patent/BE534368A/xx unknown
- NL NLAANVRAGE7503453,A patent/NL183912B/xx unknown
- NL NL87345D patent/NL87345C/xx active
1954
- 1954-11-18 US US469768A patent/US2904638A/en not_active Expired - Lifetime
- 1954-12-21 DE DEN9936A patent/DE943414C/de not_active Expired
- 1954-12-22 FR FR1117759D patent/FR1117759A/fr not_active Expired
- 1954-12-22 CH CH329213D patent/CH329213A/de unknown

Also Published As

Publication number	Publication date
US2904638A (en)	1959-09-15
CH329213A (de)	1958-04-15
NL183912B (nl)
FR1117759A (fr)	1956-05-28
DE943414C (de)	1956-05-17
NL87345C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

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