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发明名称
Centrifugal apparatus
摘要
申请公布号
US1815409(A)
申请公布日期
1931.07.21
申请号
US19280254448
申请日期
1928.02.15
申请人
ERNST KNUTTEL
发明人
KNUTTEL ERNST
分类号
B04B1/14
主分类号
B04B1/14
代理机构
代理人
主权项
地址
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