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发明名称
Gear shifting device
摘要
申请公布号
US2142732(A)
申请公布日期
1939.01.03
申请号
US19360117016
申请日期
1936.12.21
申请人
MEHLBERTH THEODORE G
发明人
MEHLBERTH THEODORE G.
分类号
G05G9/10
主分类号
G05G9/10
代理机构
代理人
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