BE476547A - - Google Patents

Info

Publication number: BE476547A
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.)

1945-10-12

Publication of BE476547A publication Critical patent/BE476547A/xx

Classifications

- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M9/00—Arrangements for interconnection not involving centralised switching
- H04M9/001—Two-way communication systems between a limited number of parties

Landscapes

Engineering & Computer Science (AREA)
Signal Processing (AREA)
Radio Relay Systems (AREA)
Interconnected Communication Systems, Intercoms, And Interphones (AREA)

BE476547D 1945-10-12 BE476547A (US06573293-20030603-C00184.png)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
GB2671645A GB602119A (en)	1945-10-12	1945-10-12	Improvements in or relating to direct call telephone systems

Publications (1)

Publication Number	Publication Date
BE476547A true BE476547A (US06573293-20030603-C00184.png)

Family

ID=10248105

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
BE476547D BE476547A (US06573293-20030603-C00184.png)	1945-10-12

Country Status (3)

Country	Link
BE (1)	BE476547A (US06573293-20030603-C00184.png)
FR (1)	FR956810A (US06573293-20030603-C00184.png)
GB (1)	GB602119A (US06573293-20030603-C00184.png)

0
- BE BE476547D patent/BE476547A/xx unknown
- FR FR956810D patent/FR956810A/fr not_active Expired
1945
- 1945-10-12 GB GB2671645A patent/GB602119A/en not_active Expired

Also Published As

Publication number	Publication date
GB602119A (en)	1948-05-20
FR956810A (US06573293-20030603-C00184.png)	1950-02-08

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