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发明名称
Arch and wall construction
摘要
申请公布号
US2467069(A)
申请公布日期
1949.04.12
申请号
US19440525772
申请日期
1944.03.09
申请人
PAUL WRIGHT
发明人
WRIGHT PAUL
分类号
F27D1/12
主分类号
F27D1/12
代理机构
代理人
主权项
地址
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