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发明名称
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摘要
申请公布号
US2225909(A)
申请公布日期
1940.12.24
申请号
US19380213193
申请日期
1938.06.11
申请人
NORDBERG MANUFACTURING CO.
发明人
GRUENDER OSCAR C.
分类号
B07B1/28
主分类号
B07B1/28
代理机构
代理人
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