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经营范围
发明名称
Retractable form structure
摘要
申请公布号
US2579423(A)
申请公布日期
1951.12.18
申请号
US19500150311
申请日期
1950.03.17
申请人
WINGFOOT CORPORATION
发明人
FORD CHARLES J.
分类号
E04G11/04
主分类号
E04G11/04
代理机构
代理人
主权项
地址
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