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发明名称
Closure shutter for window openings
摘要
申请公布号
US2700803(A)
申请公布日期
1955.02.01
申请号
US19530387370
申请日期
1953.10.21
申请人
GRAHAM GEORGE M
发明人
GRAHAM GEORGE M.
分类号
E06B9/36
主分类号
E06B9/36
代理机构
代理人
主权项
地址
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