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发明名称
Pressure seals
摘要
申请公布号
US2728620(A)
申请公布日期
1955.12.27
申请号
US19520286288
申请日期
1952.05.06
申请人
WALLACE O. LEONARD, INC.
发明人
KRUEGER RUDOLPH E.
分类号
F16J15/16
主分类号
F16J15/16
代理机构
代理人
主权项
地址
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