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发明名称
VACUUM-SYSTEM CLEANING CIRCULATION DEVICE
摘要
申请公布号
US3672379(A)
申请公布日期
1972.06.27
申请号
USD3672379
申请日期
1971.02.14
申请人
HANS J. SEIPEL;WALTER F. GANCARZ;DONALD J. AVES
发明人
HANS J. SEIPEL;WALTER F. GANCARZ;DONALD J. AVES
分类号
B08B3/02;(IPC1-7):B08B5/02;B08B9/00
主分类号
B08B3/02
代理机构
代理人
主权项
地址
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