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发明名称
Hydraulic force cup
摘要
申请公布号
US1768178(A)
申请公布日期
1930.06.24
申请号
US19280287932
申请日期
1928.06.25
申请人
M. & M. SALES & MFG. CO., INC.
发明人
WATSON LAWRENCE R.
分类号
E03C1/306
主分类号
E03C1/306
代理机构
代理人
主权项
地址
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