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经营范围
发明名称
Filter press
摘要
申请公布号
US1889225(A)
申请公布日期
1932.11.29
申请号
US19310525546
申请日期
1931.03.26
申请人
D.R. SPERRY & CO.
发明人
SPERRY DAVID R.
分类号
B01D25/164
主分类号
B01D25/164
代理机构
代理人
主权项
地址
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