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发明名称
Multiclosure head valve assembly
摘要
申请公布号
US1844222(A)
申请公布日期
1932.02.09
申请号
US19300469483
申请日期
1930.07.21
申请人
WILLIAM D. SHAFFER
发明人
JASPAR EDGAR L.
分类号
F16K15/06
主分类号
F16K15/06
代理机构
代理人
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