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发明名称
Scraper structure for a roll
摘要
申请公布号
US3404424(A)
申请公布日期
1968.10.08
申请号
US19650515841
申请日期
1965.12.23
申请人
JOHN W. DRAYTON
发明人
DRAYTON JOHN W.
分类号
B02C4/40;B29C43/22;D21G3/00
主分类号
B02C4/40
代理机构
代理人
主权项
地址
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