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经营范围
发明名称
Variable-speed transmission
摘要
申请公布号
US2437128(A)
申请公布日期
1948.03.02
申请号
US19450596393
申请日期
1945.05.28
申请人
RIEBER WILLIAM K
发明人
RIEBER WILLIAM K.
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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