BE356662A - - Google Patents

Info

Publication number: BE356662A
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.)

1927-12-16

Publication of BE356662A publication Critical patent/BE356662A/xx

Classifications

- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/40—Applications of speech amplifiers

Landscapes

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

BE356662D 1927-12-16 BE356662A (enrdf_load_stackoverflow)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
DE665897X		1927-12-16

Publications (1)

Publication Number	Publication Date
BE356662A true BE356662A (enrdf_load_stackoverflow)

Family

ID=6589604

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
BE356662D BE356662A (enrdf_load_stackoverflow)	1927-12-16

Country Status (3)

Country	Link
BE (1)	BE356662A (enrdf_load_stackoverflow)
FR (1)	FR665897A (enrdf_load_stackoverflow)
NL (1)	NL27080C (enrdf_load_stackoverflow)

0
- BE BE356662D patent/BE356662A/xx unknown
- NL NL27080D patent/NL27080C/xx active
1928
- 1928-12-15 FR FR665897D patent/FR665897A/fr not_active Expired

Also Published As

Publication number	Publication date
FR665897A (fr)	1929-09-24
NL27080C (enrdf_load_stackoverflow)

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