- 专利标题: Preparation of organic compounds
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申请号: US17360837申请日: 1937-11-09
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公开(公告)号: US2277015A公开(公告)日: 1942-03-17
- 发明人: GUEST HERBERT H
- 申请人: J B WILLIAMS COMPANY
- 专利权人: J B Williams Company
- 当前专利权人: J B Williams Company
- 优先权: US17360837 1937-11-09
- 主分类号: C11D1/52
- IPC分类号: C11D1/52
公开/授权文献
- US20210407067A1 MASK INSPECTION APPARATUS AND METHOD 公开/授权日:2021-12-30
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