DE2746819C2 - - Google Patents
Info
- Publication number
- DE2746819C2 DE2746819C2 DE19772746819 DE2746819A DE2746819C2 DE 2746819 C2 DE2746819 C2 DE 2746819C2 DE 19772746819 DE19772746819 DE 19772746819 DE 2746819 A DE2746819 A DE 2746819A DE 2746819 C2 DE2746819 C2 DE 2746819C2
- Authority
- DE
- Germany
- 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
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
- 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
Landscapes
- Health & Medical Sciences (AREA)
- Otolaryngology (AREA)
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19772746819 DE2746819A1 (de) | 1977-10-18 | 1977-10-18 | Elektrodynamischer wandler mit tiefenresonator |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19772746819 DE2746819A1 (de) | 1977-10-18 | 1977-10-18 | Elektrodynamischer wandler mit tiefenresonator |
Publications (2)
Publication Number | Publication Date |
---|---|
DE2746819A1 DE2746819A1 (de) | 1979-04-26 |
DE2746819C2 true DE2746819C2 (no) | 1987-01-08 |
Family
ID=6021713
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19772746819 Granted DE2746819A1 (de) | 1977-10-18 | 1977-10-18 | Elektrodynamischer wandler mit tiefenresonator |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE2746819A1 (no) |
-
1977
- 1977-10-18 DE DE19772746819 patent/DE2746819A1/de active Granted
Also Published As
Publication number | Publication date |
---|---|
DE2746819A1 (de) | 1979-04-26 |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
8110 | Request for examination paragraph 44 | ||
D2 | Grant after examination | ||
8363 | Opposition against the patent | ||
8339 | Ceased/non-payment of the annual fee |