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发明名称
Umluftsichter
摘要
申请公布号
DE829982(C)
申请公布日期
1952.01.31
申请号
DE1950H006875
申请日期
1950.12.05
申请人
JACOB HEYD
发明人
HEYD JACOB
分类号
B07B7/083;B07B11/04
主分类号
B07B7/083
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