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发明名称
Safety gas valve
摘要
申请公布号
US1771122(A)
申请公布日期
1930.07.22
申请号
US19280309399
申请日期
1928.10.01
申请人
JAY TED R
发明人
JAY TED R.
分类号
F16K17/00
主分类号
F16K17/00
代理机构
代理人
主权项
地址
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