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发明名称
Flexible shutter and method of making same
摘要
申请公布号
US2054499(A)
申请公布日期
1936.09.15
申请号
US19340759594
申请日期
1934.12.28
申请人
IRVING FLORMAN
发明人
FLORMAN IRVING
分类号
E06B7/22;E06B9/13
主分类号
E06B7/22
代理机构
代理人
主权项
地址
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