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发明名称
Valve
摘要
申请公布号
US2028387(A)
申请公布日期
1936.01.21
申请号
US19330674635
申请日期
1933.06.07
申请人
NATIONAL PNEUMATIC COMPANY
发明人
FORMAN PARIS R.
分类号
主分类号
代理机构
代理人
主权项
地址
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