FR506353A - Phonograph diaphragm - Google Patents
Phonograph diaphragmInfo
- Publication number
- FR506353A FR506353A FR506353A FR506353DA FR506353A FR 506353 A FR506353 A FR 506353A FR 506353 A FR506353 A FR 506353A FR 506353D A FR506353D A FR 506353DA FR 506353 A FR506353 A FR 506353A
- Authority
- FR
- France
- Prior art keywords
- phonograph
- diaphragm
- phonograph diaphragm
- 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.)
- Expired
Links
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
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR506353T | 1919-09-15 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR506353A true FR506353A (en) | 1920-08-20 |
Family
ID=8909100
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR506353A Expired FR506353A (en) | 1919-09-15 | 1919-09-15 | Phonograph diaphragm |
Country Status (2)
Country | Link |
---|---|
FR (1) | FR506353A (en) |
GB (1) | GB151242A (en) |
-
1919
- 1919-09-15 FR FR506353A patent/FR506353A/en not_active Expired
-
1920
- 1920-06-17 GB GB16393/20A patent/GB151242A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
GB151242A (en) | 1921-10-17 |
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