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经营范围
发明名称
Adjustable valve-actuating means
摘要
申请公布号
US2820472(A)
申请公布日期
1958.01.21
申请号
US19550486892
申请日期
1955.02.08
申请人
PAULSEN SPENCE
发明人
SPENCE PAULSEN
分类号
F16K31/26;G05D9/04
主分类号
F16K31/26
代理机构
代理人
主权项
地址
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