BE502519A - - Google Patents

Info

Publication number: BE502519A
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.)

1950-04-14

Publication of BE502519A publication Critical patent/BE502519A/xx

Classifications

- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/42—Systems providing special services or facilities to subscribers
- H04M3/54—Arrangements for diverting calls for one subscriber to another predetermined subscriber

Landscapes

Engineering & Computer Science (AREA)
Signal Processing (AREA)
Structure Of Telephone Exchanges (AREA)

BE502519D 1950-04-14 BE502519A (US06486227-20021126-C00005.png)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
DK315471X		1950-04-14

Publications (1)

Publication Number	Publication Date
BE502519A true BE502519A (US06486227-20021126-C00005.png)

Family

ID=8150492

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
BE502519D BE502519A (US06486227-20021126-C00005.png)	1950-04-14

Country Status (4)

Country	Link
US (1)	US2686842A (US06486227-20021126-C00005.png)
BE (1)	BE502519A (US06486227-20021126-C00005.png)
CH (1)	CH315471A (US06486227-20021126-C00005.png)
DE (1)	DE874468C (US06486227-20021126-C00005.png)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2338997A (en) *	1942-08-04	1944-01-11	Bell Telephone Labor Inc	Communication system
US2524774A (en) *	1946-02-04	1950-10-10	Int Standard Electric Corp	Telephone system

0
- BE BE502519D patent/BE502519A/xx unknown
1951
- 1951-04-12 DE DEJ4026A patent/DE874468C/de not_active Expired
- 1951-04-13 US US220813A patent/US2686842A/en not_active Expired - Lifetime
- 1951-04-13 CH CH315471D patent/CH315471A/fr unknown

Also Published As

Publication number	Publication date
US2686842A (en)	1954-08-17
CH315471A (fr)	1956-08-15
DE874468C (de)	1953-04-23

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