BE440574A - - Google Patents

Info

Publication number: BE440574A
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.)

1939-06-30

Publication of BE440574A publication Critical patent/BE440574A/xx

Classifications

- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q3/00—Selecting arrangements
- H04Q3/0016—Arrangements providing connection between exchanges
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks

Landscapes

Engineering & Computer Science (AREA)
Computer Networks & Wireless Communication (AREA)
Signal Processing (AREA)
Relay Circuits (AREA)
Structure Of Telephone Exchanges (AREA)

BE440574D 1939-06-30 BE440574A (enrdf_load_html_response)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
GB274629X		1939-06-30

Publications (1)

Publication Number	Publication Date
BE440574A true BE440574A (enrdf_load_html_response)

Family

ID=10259990

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
BE440574D BE440574A (enrdf_load_html_response)	1939-06-30

Country Status (4)

Country	Link
BE (1)	BE440574A (enrdf_load_html_response)
CH (1)	CH274629A (enrdf_load_html_response)
FR (1)	FR867216A (enrdf_load_html_response)
GB (1)	GB534459A (enrdf_load_html_response)

0
- BE BE440574D patent/BE440574A/xx unknown
1939
- 1939-06-30 GB GB19117/39A patent/GB534459A/en not_active Expired
1940
- 1940-09-17 FR FR867216D patent/FR867216A/fr not_active Expired
1947
- 1947-09-27 CH CH274629D patent/CH274629A/de unknown

Also Published As

Publication number	Publication date
GB534459A (en)	1941-03-07
FR867216A (fr)	1941-10-07
CH274629A (de)	1951-04-15

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