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经营范围
发明名称
Safety valve
摘要
申请公布号
US2206425(A)
申请公布日期
1940.07.02
申请号
US19370173830
申请日期
1937.11.10
申请人
EMIL PERMAN PER
发明人
PERMAN PER EMIL
分类号
F16K17/04
主分类号
F16K17/04
代理机构
代理人
主权项
地址
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