Invention Grant
- Patent Title: Turntable drive
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Application No.: US48711530Application Date: 1930-10-08
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Publication No.: US1899669APublication Date: 1933-02-28
- Inventor: CARSON BENJAMIN R
- Applicant: RCA CORP
- Assignee: RCA Corp
- Current Assignee: RCA Corp
- Priority: US48711530 1930-10-08
- Main IPC: G11B17/14
- IPC: G11B17/14
Information query
IPC分类:
