NL36742C - - Google Patents

Info

Publication number: NL36742C
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.)

1931-01-31

Publication of NL36742C publication Critical patent/NL36742C/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
- H04R9/10—Telephone receivers
- 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
- H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
- H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only
- 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)
Health & Medical Sciences (AREA)
Otolaryngology (AREA)
Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)

NL36742D 1931-01-31 NL36742C (xx)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
US164583XA	1931-01-31	1931-01-31
US20531XA	1931-05-02	1931-05-02

Publications (1)

Publication Number	Publication Date
NL36742C true NL36742C (xx)

Family

ID=26669855

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
NL36742D NL36742C (xx)	1931-01-31

Country Status (5)

Country	Link
BE (1)	BE385962A (xx)
CH (1)	CH164583A (xx)
DE (1)	DE624204C (xx)
FR (1)	FR730676A (xx)
NL (1)	NL36742C (xx)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE1073545B (de) *	1953-06-02	1960-01-21	Akustische u Kino Gerate Ges mbH, Wien	Dynamisches Rieht mikrophon
DE971704C (de) *	1953-06-25	1959-03-19	Carl Ludwig Lehner	Elektroakustischer Wandler fuer telefonische Zwecke
DE946819C (de) *	1954-08-14	1956-08-09	Siemens Ag	Magnetsystem fuer Lautsprecher
DE1115766B (de) *	1956-06-09	1961-10-26	Schoeps Dr Ing Karl	Schallempfaenger

0
- NL NL36742D patent/NL36742C/xx active
- BE BE385962D patent/BE385962A/xx unknown
1932
- 1932-01-17 DE DEE42318D patent/DE624204C/de not_active Expired
- 1932-01-29 CH CH164583D patent/CH164583A/fr unknown
- 1932-01-29 FR FR730676D patent/FR730676A/fr not_active Expired

Also Published As

Publication number	Publication date
DE624204C (de)	1936-01-15
BE385962A (xx)
CH164583A (fr)	1933-10-15
FR730676A (fr)	1932-08-19

Publication	Publication Date	Title
BE377446A (xx)	1931-03-31
NL33815C (xx)
NL38693C (xx)
BE362823A (xx)
BE373801A (xx)
BE375242A (xx)
BE375720A (xx)
BE376369A (xx)
BE376486A (xx)
BE376494A (xx)
BE376552A (xx)
BE376624A (xx)
BE376809A (xx)
BE376820A (xx)
BE376960A (xx)
BE376961A (xx)
BE377041A (xx)
BE377073A (xx)
BE377126A (xx)
BE377219A (xx)
BE377275A (xx)
BE377461A (xx)
BE377475A (xx)
BE377489A (xx)
BE377515A (xx)