DE232837C - - Google Patents
Info
- Publication number
- DE232837C DE232837C DENDAT232837D DE232837DA DE232837C DE 232837 C DE232837 C DE 232837C DE NDAT232837 D DENDAT232837 D DE NDAT232837D DE 232837D A DE232837D A DE 232837DA DE 232837 C DE232837 C DE 232837C
- Authority
- DE
- Germany
- Prior art keywords
- sound
- pen
- suspended
- cell
- changes
- 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.)
- Active
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
- H04R21/00—Variable-resistance transducers
- H04R21/04—Gramophone pick-ups using a stylus; Recorders using a stylus
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE232837C true DE232837C (en:Method) |
Family
ID=492832
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT232837D Active DE232837C (en:Method) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE232837C (en:Method) |
-
0
- DE DENDAT232837D patent/DE232837C/de active Active
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