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经营范围
发明名称
Idler wheel for variable speed record turntable drive
摘要
申请公布号
US3133449(A)
申请公布日期
1964.05.19
申请号
US19610127953
申请日期
1961.07.31
申请人
V-M CORPORATION
发明人
ANTWERP ROBERT L. VAN;HARBOR BENTON;FREATHY RALPH E.
分类号
G11B19/265
主分类号
G11B19/265
代理机构
代理人
主权项
地址
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