DE34639C - Innovation in the contacts of microphones - Google Patents
Innovation in the contacts of microphonesInfo
- Publication number
- DE34639C DE34639C DENDAT34639D DE34639DA DE34639C DE 34639 C DE34639 C DE 34639C DE NDAT34639 D DENDAT34639 D DE NDAT34639D DE 34639D A DE34639D A DE 34639DA DE 34639 C DE34639 C DE 34639C
- Authority
- DE
- Germany
- Prior art keywords
- microphones
- innovation
- contacts
- contact
- sheet
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Lifetime
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R21/00—Variable-resistance transducers
- H04R21/02—Microphones
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
- Details Of Audible-Bandwidth Transducers (AREA)
Description
BERLIN. GEDRUCKT IN DER REICHSDRUCKEREI.BERLIN. PRINTED IN THE REICH PRINTING COMPANY.
Claims (1)
Publications (1)
Publication Number | Publication Date |
---|---|
DE34639C true DE34639C (en) |
Family
ID=310536
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DENDAT34639D Expired - Lifetime DE34639C (en) | Innovation in the contacts of microphones |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE34639C (en) |
-
0
- DE DENDAT34639D patent/DE34639C/en not_active Expired - Lifetime
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