DE122413C - - Google Patents
Info
- Publication number
- DE122413C DE122413C DENDAT122413D DE122413DA DE122413C DE 122413 C DE122413 C DE 122413C DE NDAT122413 D DENDAT122413 D DE NDAT122413D DE 122413D A DE122413D A DE 122413DA DE 122413 C DE122413 C DE 122413C
- Authority
- DE
- Germany
- Prior art keywords
- membrane
- pressure
- weight
- phonographs
- tool
- 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 17
- 230000035945 sensitivity Effects 0.000 description 3
- 210000002445 nipple Anatomy 0.000 description 2
- 241001422033 Thestylus Species 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 241000894007 species Species 0.000 description 1
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B25/00—Apparatus characterised by the shape of record carrier employed but not specific to the method of recording or reproducing, e.g. dictating apparatus; Combinations of such apparatus
- G11B25/02—Apparatus characterised by the shape of record carrier employed but not specific to the method of recording or reproducing, e.g. dictating apparatus; Combinations of such apparatus using cylindrical record carriers
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE122413C true DE122413C (cs) |
Family
ID=391331
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT122413D Active DE122413C (cs) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE122413C (cs) |
-
0
- DE DENDAT122413D patent/DE122413C/de active Active
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