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发明名称
Seal construction
摘要
申请公布号
US2249188(A)
申请公布日期
1941.07.15
申请号
US19390297715
申请日期
1939.10.03
申请人
SEALOL COMPANY
发明人
STEVENSON ROBERT
分类号
F16J15/38
主分类号
F16J15/38
代理机构
代理人
主权项
地址
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