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发明名称
Counterbalancing means
摘要
申请公布号
US2972264(A)
申请公布日期
1961.02.21
申请号
US19570697708
申请日期
1957.11.20
申请人
NORTH AMERICAN PHILIPS COMPANY, INC.
发明人
BIRKBECK GUY;BROWN IVAN GODFREY OLIVER
分类号
F16F15/28
主分类号
F16F15/28
代理机构
代理人
主权项
地址
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