NL23822C - - Google Patents

Info

Publication number: NL23822C
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.)

1927-01-18

Publication of NL23822C publication Critical patent/NL23822C/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
- H04R7/00—Diaphragms for electromechanical transducers; Cones
- H04R7/16—Mounting or tensioning of diaphragms or cones
- 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
- H04R9/041—Centering
- 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

Engineering & Computer Science (AREA)
Physics & Mathematics (AREA)
Acoustics & Sound (AREA)
Signal Processing (AREA)
Multimedia (AREA)
Diaphragms For Electromechanical Transducers (AREA)
Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)

NL23822D 1927-01-18 NL23822C (it)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US161824A US1637119A (en)	1927-01-18	1927-01-18	Electromagnetic sound reproducer

Publications (1)

Publication Number	Publication Date
NL23822C true NL23822C (it)

Family

ID=22582902

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
NL23822D NL23822C (it)	1927-01-18

Country Status (6)

Country	Link
US (2)	US1637119A (it)
BE (1)	BE348263A (it)
DE (1)	DE517895C (it)
FR (1)	FR647892A (it)
GB (1)	GB276900A (it)
NL (1)	NL23822C (it)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPS5527702A (en) *	1978-08-18	1980-02-28	Sony Corp	Vibrator for speaker

0
- US US17086D patent/USRE17086E/en not_active Expired
- NL NL23822D patent/NL23822C/xx active
- BE BE348263D patent/BE348263A/xx unknown
1927
- 1927-01-18 US US161824A patent/US1637119A/en not_active Expired - Lifetime
- 1927-03-22 GB GB7917/27A patent/GB276900A/en not_active Expired
1928
- 1928-01-17 FR FR647892D patent/FR647892A/fr not_active Expired
- 1928-01-18 DE DEF65179D patent/DE517895C/de not_active Expired

Also Published As

Publication number	Publication date
BE348263A (it)
GB276900A (en)	1927-09-08
USRE17086E (en)	1928-09-18
FR647892A (fr)	1928-12-03
US1637119A (en)	1927-07-26
DE517895C (de)	1931-02-07

Publication	Publication Date	Title
FR34692E (it)	1929-09-19
FR31237E (it)	1927-01-26
FR34631E (it)	1929-09-19
FR34490E (it)	1929-06-19
FR636713A (it)	1928-04-16
FR34759E (it)	1927-10-21
FR34655E (it)	1929-09-19
FR666885A (it)	1927-10-17
FR623703A (it)	1927-06-29
FR623287A (it)	1927-06-21
FR34739E (it)	1929-09-19
BE356293A (it)
BE353290A (it)
BE349775A (it)
BE353601A (it)
NL25054C (it)
NL23822C (it)
NL25423C (it)
BE347199A (it)
BE355961A (it)
BE382446A (it)	1931-10-31
BE374681A (it)
BE358311A (it)
BE356535A (it)
BE355514A (it)