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发明名称
Valve assembly having particular head and seat cooperation
摘要
申请公布号
US3219311(A)
申请公布日期
1965.11.23
申请号
US19620244092
申请日期
1962.12.12
申请人
SIVER CHESTER A
发明人
SIVER CHESTER A.
分类号
B23K15/00;F16K1/34;F16K1/38;F16K1/42;F16K27/08;F16K41/02
主分类号
B23K15/00
代理机构
代理人
主权项
地址
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