Invention Grant
- Patent Title: Cover
- Patent Title (中): 盖
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Application No.: US25815139Application Date: 1939-02-24
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Publication No.: US2314682APublication Date: 1943-03-23
- Inventor: BECKET ALAN L
- Applicant: BECKET ALAN L
- Assignee: Alan L Becket
- Current Assignee: Alan L Becket
- Priority: US25815139 1939-02-24
- Main IPC: E02D29/12
- IPC: E02D29/12 ; E02D29/14
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