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发明名称
EQUATORIAL VIEW PORT
摘要
申请公布号
GB8518642(D0)
申请公布日期
1985.08.29
申请号
GB19850018642
申请日期
1985.07.23
申请人
WALKER, T D
发明人
分类号
B63B3/13;B63B19/02;B63C11/48;B63G8/00;H04N5/222
主分类号
B63B3/13
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代理人
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