发明授权
- 专利标题: Air-purifier.
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申请号: US1912706798申请日: 1912-06-29
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公开(公告)号: US1089548A公开(公告)日: 1914-03-10
- 发明人: GROSS EDWARD L
- 申请人: JOSEPH I KOPPERL , CHARLES F EIKER , GROSS EDWARD L
- 专利权人: Joseph I Kopperl,Charles F Eiker,Edward L Gross
- 当前专利权人: Joseph I Kopperl,Charles F Eiker,Edward L Gross
- 优先权: US1912706798 1912-06-29
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