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发明名称
SQUARE
摘要
申请公布号
CA323153(A)
申请公布日期
1932.06.14
申请号
CAD323153
申请日期
申请人
ROBERT W. TAIT;CHARLES F. LEPPER
发明人
CHARLES F. LEPPER;ROBERT W. TAIT
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主分类号
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