发明授权
- 专利标题: Apparatus for defibering and deinking papers
- 专利标题(中): 纸张脱脂和脱墨设备
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申请号: US18985038申请日: 1938-02-10
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公开(公告)号: US2252781A公开(公告)日: 1941-08-19
- 发明人: HENRY PARTINGTON EDWARD , HENRY PORRITT WILLIAM
- 申请人: HENRY PARTINGTON EDWARD , HENRY PORRITT WILLIAM
- 专利权人: Partington Edward Henry,Porritt William Henry
- 当前专利权人: Partington Edward Henry,Porritt William Henry
- 优先权: GB2252781X 1937-02-10
- 主分类号: D21D1/32
- IPC分类号: D21D1/32
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