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发明名称
Bituminous road surface
摘要
申请公布号
US1834835(A)
申请公布日期
1931.12.01
申请号
US19290403666
申请日期
1929.10.30
申请人
MESSRS. FOX, STOCKWELL & COMPANY
发明人
FRITSCH HERMANN
分类号
E01C7/18
主分类号
E01C7/18
代理机构
代理人
主权项
地址
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