FR742647A - - Google Patents
Info
- Publication number
- FR742647A FR742647A FR742647DA FR742647A FR 742647 A FR742647 A FR 742647A FR 742647D A FR742647D A FR 742647DA FR 742647 A FR742647 A FR 742647A
- Authority
- FR
- France
- 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
- G11B19/00—Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function ; Driving both disc and head
- G11B19/20—Driving; Starting; Stopping; Control thereof
- G11B19/26—Speed-changing arrangements; Reversing arrangements; Drive-transfer means therefor
- G11B19/265—Friction wheel drive
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR742647A true FR742647A (en) | 1933-03-10 |
Family
ID=1547030
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR742647D Expired FR742647A (en) |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR742647A (en) |
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0
- FR FR742647D patent/FR742647A/fr not_active Expired