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发明名称
Seal
摘要
申请公布号
US2426174(A)
申请公布日期
1947.08.26
申请号
US19440550607
申请日期
1944.08.22
申请人
SEALOL CORPORATION
发明人
BOTTOMLEY FRANK
分类号
F16C33/78;F16J15/34
主分类号
F16C33/78
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代理人
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