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发明名称
Resiliently expanded scraper device for removing carbon from valve guides
摘要
申请公布号
US2584634(A)
申请公布日期
1952.02.05
申请号
US19470734766
申请日期
1947.03.14
申请人
ST. CLAIR MACHINE PRODUCTS COMPANY
发明人
SPANG WILLIAM H.
分类号
B25B27/30
主分类号
B25B27/30
代理机构
代理人
主权项
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