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经营范围
发明名称
Improvements in roller blinds
摘要
申请公布号
GB481450(A)
申请公布日期
1938.03.11
申请号
GB19360025393
申请日期
1936.09.18
申请人
ROLAND SCOTT POWELL
发明人
分类号
A47C27/12;E06B9/40
主分类号
A47C27/12
代理机构
代理人
主权项
地址
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