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发明名称
Siphon arch brick
摘要
申请公布号
US1880062(A)
申请公布日期
1932.09.27
申请号
US19310511270
申请日期
1931.01.26
申请人
AMERICAN ARCH COMPANY
发明人
WILLETT ALFRED H.
分类号
F23M3/02
主分类号
F23M3/02
代理机构
代理人
主权项
地址
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