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发明名称
Service line shut-off
摘要
申请公布号
US2006742(A)
申请公布日期
1935.07.02
申请号
US19320627579
申请日期
1932.08.05
申请人
EUGENE MILLER
发明人
MILLER EUGENE
分类号
F16K31/53
主分类号
F16K31/53
代理机构
代理人
主权项
地址
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