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经营范围
发明名称
Carrying scraper
摘要
申请公布号
US2425664(A)
申请公布日期
1947.08.12
申请号
US19450604211
申请日期
1945.07.10
申请人
PAUL ZAKEL
发明人
ZAKEL PAUL
分类号
E02F3/64
主分类号
E02F3/64
代理机构
代理人
主权项
地址
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