NL21086C - - Google Patents

Info

Publication number: NL21086C
Authority: NL; Netherlands

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.)

1925-12-22

Publication of NL21086C publication Critical patent/NL21086C/xx

Classifications

- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
- H04R7/00—Diaphragms for electromechanical transducers; Cones
- H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
- H04R7/12—Non-planar diaphragms or cones
- H04R7/122—Non-planar diaphragms or cones comprising a plurality of sections or layers

Landscapes

Engineering & Computer Science (AREA)
Multimedia (AREA)
Physics & Mathematics (AREA)
Acoustics & Sound (AREA)
Signal Processing (AREA)
Diaphragms For Electromechanical Transducers (AREA)

NL21086D 1925-12-22 NL21086C (cg-RX-API-DMAC7.html)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US263480XA	1925-12-22	1925-12-22

Publications (1)

Publication Number	Publication Date
NL21086C true NL21086C (cg-RX-API-DMAC7.html)

Family

ID=21831303

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
NL21086D NL21086C (cg-RX-API-DMAC7.html)	1925-12-22

Country Status (2)

Country	Link
GB (1)	GB263480A (cg-RX-API-DMAC7.html)
NL (1)	NL21086C (cg-RX-API-DMAC7.html)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB2127650A (en) *	1982-08-07	1984-04-11	Univ Liverpool	Moving coil loudspeaker

0
- NL NL21086D patent/NL21086C/xx active
1926
- 1926-04-13 GB GB9735/26A patent/GB263480A/en not_active Expired

Also Published As

Publication number	Publication date
GB263480A (en)	1927-09-13

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