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发明名称
Packing for pipe cutters and valve inserting machines
摘要
申请公布号
US1805710(A)
申请公布日期
1931.05.19
申请号
US19290371601
申请日期
1929.06.17
申请人
MUELLER CO.
发明人
WILKINS JAMES M.
分类号
F16L55/105
主分类号
F16L55/105
代理机构
代理人
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地址
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