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经营范围
发明名称
Roadway working apparatus
摘要
申请公布号
US2973723(A)
申请公布日期
1961.03.07
申请号
US19550496851
申请日期
1955.03.25
申请人
CHAIN BELT COMPANY;HELTZEL STEEL FORM AND IRON CO.
发明人
HUDIS MICHAEL I.;MARCELLO JACOB J.
分类号
E01C19/00
主分类号
E01C19/00
代理机构
代理人
主权项
地址
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