BE351040A - - Google Patents

Info

Publication number: BE351040A
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.)

1927-07-30

Publication of BE351040A publication Critical patent/BE351040A/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
- H04R11/00—Transducers of moving-armature or moving-core type

Landscapes

Physics & Mathematics (AREA)
Electromagnetism (AREA)
Engineering & Computer Science (AREA)
Acoustics & Sound (AREA)
Signal Processing (AREA)
Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)

BE351040D 1927-07-30 BE351040A (US06650917-20031118-M00005.png)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
DE294877T		1927-07-30

Publications (1)

Publication Number	Publication Date
BE351040A true BE351040A (US06650917-20031118-M00005.png)

Family

ID=31894088

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
BE351040D BE351040A (US06650917-20031118-M00005.png)	1927-07-30

Country Status (4)

Country	Link
US (1)	US1716893A (US06650917-20031118-M00005.png)
BE (1)	BE351040A (US06650917-20031118-M00005.png)
FR (1)	FR661622A (US06650917-20031118-M00005.png)
GB (1)	GB294877A (US06650917-20031118-M00005.png)

0
- BE BE351040D patent/BE351040A/xx unknown
1928
- 1928-05-19 FR FR661622D patent/FR661622A/fr not_active Expired
- 1928-06-28 GB GB18724/28A patent/GB294877A/en not_active Expired
- 1928-07-25 US US295272A patent/US1716893A/en not_active Expired - Lifetime

Also Published As

Publication number	Publication date
US1716893A (en)	1929-06-11
GB294877A (US06650917-20031118-M00005.png)	1929-08-15
FR661622A (fr)	1929-07-27

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