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经营范围
发明名称
PIPE STOPPER
摘要
申请公布号
US3459230(A)
申请公布日期
1969.08.05
申请号
USD3459230
申请日期
1966.08.31
申请人
LESTER R. SMITH
发明人
LESTER R. SMITH
分类号
F16K7/10;(IPC1-7):F16L55/12
主分类号
F16K7/10
代理机构
代理人
主权项
地址
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