DE269045C - - Google Patents
Info
- Publication number
- DE269045C DE269045C DENDAT269045D DE269045DA DE269045C DE 269045 C DE269045 C DE 269045C DE NDAT269045 D DENDAT269045 D DE NDAT269045D DE 269045D A DE269045D A DE 269045DA DE 269045 C DE269045 C DE 269045C
- Authority
- DE
- Germany
- Prior art keywords
- needle
- pen
- disc
- sound
- vibrations
- 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
- 229920002160 Celluloid Polymers 0.000 claims description 4
- 239000000899 Gutta-Percha Substances 0.000 description 2
- 240000000342 Palaquium gutta Species 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000009970 fire resistant effect Effects 0.000 description 2
- 229920000588 gutta-percha Polymers 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 239000010437 gem Substances 0.000 description 1
- 229910001751 gemstone Inorganic materials 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 230000002787 reinforcement 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
- G11B3/48—Needles
Landscapes
- Apparatuses For Generation Of Mechanical Vibrations (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE269045C true DE269045C (cs) |
Family
ID=525948
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT269045D Active DE269045C (cs) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE269045C (cs) |
-
0
- DE DENDAT269045D patent/DE269045C/de active Active
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