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发明名称
Seal
摘要
申请公布号
US2650841(A)
申请公布日期
1953.09.01
申请号
US19480016970
申请日期
1948.03.25
申请人
ROTARY SEAL COMPANY
发明人
MEYER WALTER W.
分类号
F16J15/36
主分类号
F16J15/36
代理机构
代理人
主权项
地址
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