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发明名称
Cover construction
摘要
申请公布号
US3074590(A)
申请公布日期
1963.01.22
申请号
US19590836127
申请日期
1959.08.26
申请人
SHAND AND JURS CO.
发明人
JURS PETER C.;CHAMPION ALBERT R.;THULE BERNT A.
分类号
F16J13/20
主分类号
F16J13/20
代理机构
代理人
主权项
地址
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