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发明名称
Gear shifting means
摘要
申请公布号
US2159846(A)
申请公布日期
1939.05.23
申请号
US19360057465
申请日期
1936.01.04
申请人
RALPH GAMBARDELLA
发明人
GAMBARDELLA RALPH
分类号
主分类号
代理机构
代理人
主权项
地址
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