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发明名称
Fluctuating leverage engine
摘要
申请公布号
US1751474(A)
申请公布日期
1930.03.25
申请号
US19220555374
申请日期
1922.04.18
申请人
EAGER FRANK L
发明人
EAGER FRANK L.
分类号
F16H21/22
主分类号
F16H21/22
代理机构
代理人
主权项
地址
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