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发明名称
Shingle
摘要
申请公布号
US1956381(A)
申请公布日期
1934.04.24
申请号
US19300505924
申请日期
1930.12.31
申请人
THE BARRETT COMPANY
发明人
ECKERT CLARENCE R.
分类号
E04D1/26
主分类号
E04D1/26
代理机构
代理人
主权项
地址
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