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发明名称
FOLDABLE CLOSURE FOR AN OPENING IN A WALL
摘要
申请公布号
CA491272(A)
申请公布日期
1953.03.17
申请号
CAD491272
申请日期
申请人
STANLEY J. MCCARTHY
发明人
STANLEY J. MCCARTHY
分类号
主分类号
代理机构
代理人
主权项
地址
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