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发明名称
PIPE JOINT SEALING METHOD
摘要
申请公布号
CA385628(A)
申请公布日期
1939.12.12
申请号
CAD385628
申请日期
申请人
LOCK JOINT PIPE COMPANY
发明人
WILLIAM WALTER TRICKEY
分类号
主分类号
代理机构
代理人
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