BE437434A - - Google Patents

Info

Publication number: BE437434A
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.)

1939-12-20

Publication of BE437434A publication Critical patent/BE437434A/xx

Classifications

- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets

Landscapes

Engineering & Computer Science (AREA)
Signal Processing (AREA)

BE437434D 1939-12-20 BE437434A (enrdf_load_html_response)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
BE220599X		1939-12-20

Publications (1)

Publication Number	Publication Date
BE437434A true BE437434A (enrdf_load_html_response)

Family

ID=3866093

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
BE437434D BE437434A (enrdf_load_html_response)	1939-12-20

Country Status (3)

Country	Link
BE (1)	BE437434A (enrdf_load_html_response)
CH (1)	CH220599A (enrdf_load_html_response)
FR (1)	FR881760A (enrdf_load_html_response)

0
- BE BE437434D patent/BE437434A/xx unknown
1941
- 1941-08-08 CH CH220599D patent/CH220599A/de unknown
1942
- 1942-05-04 FR FR881760D patent/FR881760A/fr not_active Expired

Also Published As

Publication number	Publication date
FR881760A (fr)	1943-05-07
CH220599A (de)	1942-04-15

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