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发明名称
Vacuum cleaning device
摘要
申请公布号
US2063253(A)
申请公布日期
1936.12.08
申请号
US19340754583
申请日期
1934.11.24
申请人
SIEMENS-SCHUCKERTWERKE AKTIENGESELLSCHAFT
发明人
KUHNEL CARL
分类号
A47L9/04
主分类号
A47L9/04
代理机构
代理人
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地址
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