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发明名称
Variable speed transmission
摘要
申请公布号
US2157757(A)
申请公布日期
1939.05.09
申请号
US19360083409
申请日期
1936.06.04
申请人
JACOBSEN RICHARD S
发明人
JACOBSEN RICHARD S.
分类号
F16H9/12
主分类号
F16H9/12
代理机构
代理人
主权项
地址
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