DE288067C - - Google Patents
Info
- Publication number
- DE288067C DE288067C DENDAT288067D DE288067DA DE288067C DE 288067 C DE288067 C DE 288067C DE NDAT288067 D DENDAT288067 D DE NDAT288067D DE 288067D A DE288067D A DE 288067DA DE 288067 C DE288067 C DE 288067C
- Authority
- DE
- Germany
- Prior art keywords
- sound
- sound pen
- weight
- support arm
- support
- 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
- 239000012528 membrane Substances 0.000 claims description 6
- 240000006829 Ficus sundaica Species 0.000 description 1
- 239000010985 leather Substances 0.000 description 1
- 230000000644 propagated effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B3/00—Recording by mechanical cutting, deforming or pressing, e.g. of grooves or pits; Reproducing by mechanical sensing; Record carriers therefor
- G11B3/44—Styli, e.g. sapphire, diamond
- G11B3/46—Constructions or forms ; Dispositions or mountings, e.g. attachment of point to shank
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Toys (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE288067C true DE288067C (cs) |
Family
ID=543228
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT288067D Active DE288067C (cs) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE288067C (cs) |
-
0
- DE DENDAT288067D patent/DE288067C/de active Active
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