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经营范围
发明名称
Pressure vessel closure and seal
摘要
申请公布号
GB902783(A)
申请公布日期
1962.08.09
申请号
GB19600027083
申请日期
1960.08.04
申请人
GRAY TOOL COMPANY
发明人
分类号
B01J3/03;F16J13/12
主分类号
B01J3/03
代理机构
代理人
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