BE442514A - - Google Patents

Info

Publication number: BE442514A
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.)

1940-08-22

Publication of BE442514A publication Critical patent/BE442514A/xx

Classifications

- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R5/00—Stereophonic arrangements
- H04R5/02—Spatial or constructional arrangements of loudspeakers
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04S—STEREOPHONIC SYSTEMS
- H04S1/00—Two-channel systems

Landscapes

Physics & Mathematics (AREA)
Engineering & Computer Science (AREA)
Acoustics & Sound (AREA)
Signal Processing (AREA)
Stereophonic System (AREA)
Stereophonic Arrangements (AREA)

BE442514D 1940-08-22 BE442514A (enrdf_load_stackoverflow)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
NL219703X		1940-08-22

Publications (1)

Publication Number	Publication Date
BE442514A true BE442514A (enrdf_load_stackoverflow)

Family

ID=19779289

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
BE442514D BE442514A (enrdf_load_stackoverflow)	1940-08-22

Country Status (5)

Country	Link
BE (1)	BE442514A (enrdf_load_stackoverflow)
CH (1)	CH219703A (enrdf_load_stackoverflow)
DE (1)	DE940048C (enrdf_load_stackoverflow)
FR (1)	FR874783A (enrdf_load_stackoverflow)
GB (1)	GB609037A (enrdf_load_stackoverflow)

0
- BE BE442514D patent/BE442514A/xx unknown
1941
- 1941-08-20 FR FR874783D patent/FR874783A/fr not_active Expired
- 1941-08-20 CH CH219703D patent/CH219703A/de unknown
- 1941-08-20 DE DEN2498D patent/DE940048C/de not_active Expired
1945
- 1945-11-28 GB GB32152/45A patent/GB609037A/en not_active Expired

Also Published As

Publication number	Publication date
GB609037A (en)	1948-09-24
DE940048C (de)	1956-03-08
FR874783A (fr)	1942-08-26
CH219703A (de)	1942-02-28

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