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发明名称
Safety device for valves
摘要
申请公布号
US2374564(A)
申请公布日期
1945.04.24
申请号
US19430503380
申请日期
1943.09.22
申请人
SERVEL, INC.
发明人
JR. JOHN G. REID,;MCNEELY LOWELL
分类号
F16K17/00;F25B43/04
主分类号
F16K17/00
代理机构
代理人
主权项
地址
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