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经营范围
发明名称
Rolling partition or closure
摘要
申请公布号
US1797321(A)
申请公布日期
1931.03.24
申请号
US19230646193
申请日期
1923.06.18
申请人
JOHN CAHILL
发明人
CAHILL JOHN
分类号
E06B9/17
主分类号
E06B9/17
代理机构
代理人
主权项
地址
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