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经营范围
发明名称
Controlled volume blast valve
摘要
申请公布号
US2960083(A)
申请公布日期
1960.11.15
申请号
US19570684494
申请日期
1957.09.17
申请人
GRIMLAND COMPANY MANUFACTURERS INC.
发明人
GRIMLAND JOSEPH F.;GRIMLAND CHARLES J.
分类号
F16K31/00;F41A33/00;F41B11/00
主分类号
F16K31/00
代理机构
代理人
主权项
地址
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