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摘要
申请公布号
US2811306(A)
申请公布日期
1957.10.29
申请号
US19550519030
申请日期
1955.06.30
申请人
KALMOE HJALMER H
发明人
KALMOE HJALMER H.
分类号
A47G29/122
主分类号
A47G29/122
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