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发明名称
Variable-pitch pulley
摘要
申请公布号
US2254380(A)
申请公布日期
1941.09.02
申请号
US19400333904
申请日期
1940.05.08
申请人
ORVILLE MITCHELL
发明人
MITCHELL ORVILLE
分类号
F16H55/56
主分类号
F16H55/56
代理机构
代理人
主权项
地址
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