NL25688C - - Google Patents

Info

Publication number: NL25688C
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.)

1927-07-30

Publication of NL25688C publication Critical patent/NL25688C/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
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/02—Details
- H04R9/04—Construction, mounting, or centering of coil
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/02—Casings; Cabinets ; Supports therefor; Mountings therein
- H04R1/025—Arrangements for fixing loudspeaker transducers, e.g. in a box, furniture
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/06—Loudspeakers

Landscapes

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

NL25688D 1927-07-30 NL25688C (enrdf_load_html_response)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US294875XA	1927-07-30	1927-07-30

Publications (1)

Publication Number	Publication Date
NL25688C true NL25688C (enrdf_load_html_response)

Family

ID=21849258

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
NL25688D NL25688C (enrdf_load_html_response)	1927-07-30

Country Status (4)

Country	Link
BE (1)	BE352792A (enrdf_load_html_response)
FR (1)	FR664693A (enrdf_load_html_response)
GB (1)	GB294875A (enrdf_load_html_response)
NL (1)	NL25688C (enrdf_load_html_response)

0
- BE BE352792D patent/BE352792A/xx unknown
- NL NL25688D patent/NL25688C/xx active
1928
- 1928-06-25 GB GB18339/28A patent/GB294875A/en not_active Expired
- 1928-07-28 FR FR664693D patent/FR664693A/fr not_active Expired

Also Published As

Publication number	Publication date
FR664693A (fr)	1929-09-06
GB294875A (en)	1929-08-22
BE352792A (enrdf_load_html_response)

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