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发明名称
Luftkanalmadras.
摘要
申请公布号
DK43960(C)
申请公布日期
1931.04.07
申请号
DKD43960
申请日期
1930.07.29
申请人
HARRY VILHELM FRANDSEN
发明人
HARRY VILHELM FRANDSEN
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主分类号
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