- 专利标题: Electric timing device
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申请号: US17343537申请日: 1937-11-08
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公开(公告)号: US2221863A公开(公告)日: 1940-11-19
- 发明人: CRANE SAMUEL G
- 申请人: RALPH E DUTCHER , OTTO O HURICH , LUDWIG M JANKS , ALBERT M LARSEN , EDGAR B LEAVERTON
- 专利权人: Ralph E Dutcher,Otto O Hurich,Ludwig M Janks,Albert M Larsen,Edgar B Leaverton
- 当前专利权人: Ralph E Dutcher,Otto O Hurich,Ludwig M Janks,Albert M Larsen,Edgar B Leaverton
- 优先权: US17343537 1937-11-08
- 主分类号: A23G9/32
- IPC分类号: A23G9/32 ; A23G9/48 ; G04C3/18
公开/授权文献
- US20210379633A1 FLEXIBLE AND EXTENDABLE CONDUIT DESCALING ARTICLE 公开/授权日:2021-12-09
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