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发明名称
Pressure-operated valve mechanism
摘要
申请公布号
US1797618(A)
申请公布日期
1931.03.24
申请号
US19300477392
申请日期
1930.08.23
申请人
PLATT HARRY E
发明人
PLATT HARRY E.
分类号
F16K31/363
主分类号
F16K31/363
代理机构
代理人
主权项
地址
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