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发明名称
Roller screen
摘要
申请公布号
US1990830(A)
申请公布日期
1935.02.12
申请号
US19330693460
申请日期
1933.10.13
申请人
ALBERT LANG
发明人
LANG ALBERT
分类号
E06B9/54
主分类号
E06B9/54
代理机构
代理人
主权项
地址
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