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发明名称
Packing
摘要
申请公布号
US2188957(A)
申请公布日期
1940.02.06
申请号
US19360068244
申请日期
1936.03.11
申请人
BLACKHAWK MFG. CO.
发明人
PFAUSER EDWARD M.
分类号
F16J15/20
主分类号
F16J15/20
代理机构
代理人
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