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经营范围
发明名称
Air seal for separating devices
摘要
申请公布号
US2913109(A)
申请公布日期
1959.11.17
申请号
US19560583182
申请日期
1956.05.07
申请人
WILLIAMS PATENT CRUSHER AND PULVERIZER CO., INC.
发明人
WILLIAMS ROBERT M.
分类号
B07B7/08
主分类号
B07B7/08
代理机构
代理人
主权项
地址
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