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Vacuum cleaner nozzle
申请公布号:
US2534189(A)
申请号:
US19440540479
申请日期:
1944.06.15
申请公布日期:
1950.12.12
申请人:
WRIGHT EDWARD A
发明人:
WRIGHT EDWARD A.
分类号:
A47L9/02
主分类号:
A47L9/02
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