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经营范围
发明名称
DRAINAGE VALVE
摘要
申请公布号
US3542059(A)
申请公布日期
1970.11.24
申请号
USD3542059
申请日期
1968.10.01
申请人
JAY L. BLANCHARD;BEYMON BLANCHARD
发明人
JAY L. BLANCHARD;BEYMON BLANCHARD
分类号
E04H13/00;F16L55/00;(IPC1-7):F16K45/00
主分类号
E04H13/00
代理机构
代理人
主权项
地址
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