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发明名称
Valve assemblies
摘要
申请公布号
US3060451(A)
申请公布日期
1962.10.30
申请号
US19610100295
申请日期
1961.04.03
申请人
SCHULHOFF JR SAUL
发明人
JR. SAUL SCHULHOFF,
分类号
E03D1/34
主分类号
E03D1/34
代理机构
代理人
主权项
地址
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