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发明名称
VALVE DEVICE
摘要
申请公布号
US3529619(A)
申请公布日期
1970.09.22
申请号
USD3529619
申请日期
1969.07.09
申请人
HERCULES INC.
发明人
DAVID G. DREWRY;RALPH M. NEWMAN JR.
分类号
F16K1/12;(IPC1-7):F16K1/12;F16K27/00
主分类号
F16K1/12
代理机构
代理人
主权项
地址
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