Invention Grant
- Patent Title: Reenforced comb foundation for beehives
- Patent Title (中): 蜂巢加强梳子基础
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Application No.: US39271020Application Date: 1920-06-29
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Publication No.: US1512861APublication Date: 1924-10-21
- Inventor: ROOT ERNEST R
- Applicant: AI ROOT CO
- Assignee: Ai Root Co
- Current Assignee: Ai Root Co
- Priority: US39271020 1920-06-29
- Main IPC: A01K47/04
- IPC: A01K47/04
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