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发明名称
Curtain stretcher
摘要
申请公布号
US2228645(A)
申请公布日期
1941.01.14
申请号
US19400316292
申请日期
1940.01.30
申请人
FRANK SCHMITZ
发明人
SCHMITZ FRANK
分类号
D06C3/00
主分类号
D06C3/00
代理机构
代理人
主权项
地址
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