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发明名称
Positive variable speed transmission
摘要
申请公布号
US2920506(A)
申请公布日期
1960.01.12
申请号
US19580774711
申请日期
1958.11.18
申请人
STEVENSON GERALD W
发明人
STEVENSON GERALD W.
分类号
F16H3/72
主分类号
F16H3/72
代理机构
代理人
主权项
地址
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