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发明名称
Shingle
摘要
申请公布号
US1973931(A)
申请公布日期
1934.09.18
申请号
US19310560939
申请日期
1931.09.03
申请人
LANCASTER ASPHALT, INCORPORATED
发明人
ROBINSON THOMAS
分类号
E04D1/26
主分类号
E04D1/26
代理机构
代理人
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