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发明名称
Valve-operating mechanism
摘要
申请公布号
US1750537(A)
申请公布日期
1930.03.11
申请号
US19280246255
申请日期
1928.01.12
申请人
THOMAS GASPARIC
发明人
MURRAY DANIEL J.
分类号
F16K31/524
主分类号
F16K31/524
代理机构
代理人
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地址
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