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经营范围
发明名称
Annular valve
摘要
申请公布号
US1986944(A)
申请公布日期
1935.01.08
申请号
US19310545591
申请日期
1931.06.19
申请人
KURT SCHOENE
发明人
SCHOENE KURT
分类号
F16K15/08
主分类号
F16K15/08
代理机构
代理人
主权项
地址
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