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发明名称
Nach dem Schleusenprinzip arbeitende Luftpumpe
摘要
申请公布号
DE608555(C)
申请公布日期
1935.01.25
申请号
DE1932E043056D
申请日期
1932.07.21
申请人
SVEN SIGURD EKMAN
发明人
分类号
主分类号
代理机构
代理人
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