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经营范围
发明名称
Removable cap with depending chamber which encloses a reciprocating valve element
摘要
申请公布号
US2579899(A)
申请公布日期
1951.12.25
申请号
US19480028327
申请日期
1948.05.21
申请人
BURROWS DALE L
发明人
BURROWS DALE L.
分类号
A47G19/24
主分类号
A47G19/24
代理机构
代理人
主权项
地址
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