BE416505A - - Google Patents

Info

Publication number: BE416505A
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.)

1935-07-12

Publication of BE416505A publication Critical patent/BE416505A/xx

Classifications

- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/22—Arrangements for supervision, monitoring or testing
- H04M3/26—Arrangements for supervision, monitoring or testing with means for applying test signals or for measuring
- H04M3/28—Automatic routine testing ; Fault testing; Installation testing; Test methods, test equipment or test arrangements therefor

Landscapes

Engineering & Computer Science (AREA)
Signal Processing (AREA)
Monitoring And Testing Of Exchanges (AREA)

BE416505D 1935-07-12 BE416505A (en:Method)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US30957A US2091116A (en)	1935-07-12	1935-07-12	Automatic telephone system

Publications (1)

Publication Number	Publication Date
BE416505A true BE416505A (en:Method)

Family

ID=21856901

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
BE416505D BE416505A (en:Method)	1935-07-12

Country Status (3)

Country	Link
US (1)	US2091116A (en:Method)
BE (1)	BE416505A (en:Method)
GB (1)	GB476587A (en:Method)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
BE475627A (en:Method) *	1946-08-24
US2562362A (en) *	1947-11-04	1951-07-31	Automatic Elect Lab	Testing system employing test distributor switches and test connector switches
US2623956A (en) *	1949-02-14	1952-12-30	Stromberg Carlson Co	Telephone test selector
US2564013A (en) *	1949-06-17	1951-08-14	Stromberg Carlson Co	Telephone test selector

0
- BE BE416505D patent/BE416505A/xx unknown
1935
- 1935-07-12 US US30957A patent/US2091116A/en not_active Expired - Lifetime
1936
- 1936-06-11 GB GB16345/36A patent/GB476587A/en not_active Expired

Also Published As

Publication number	Publication date
GB476587A (en)	1937-12-13
US2091116A (en)	1937-08-24

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