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发明名称
Change speed mechanism
摘要
申请公布号
US2321672(A)
申请公布日期
1943.06.15
申请号
US19400328184
申请日期
1940.04.06
申请人
HALL JOSEPH M;TUCKER HERBERT E
发明人
HALL JOSEPH M.;TUCKER HERBERT E.
分类号
F16H61/02
主分类号
F16H61/02
代理机构
代理人
主权项
地址
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