Invention Grant
- Patent Title: Stack of building blocks
- Patent Title (中): 一堆积木
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Application No.: US43481954Application Date: 1954-06-07
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Publication No.: US2804980APublication Date: 1957-09-03
- Inventor: THOMAS PAUL M
- Applicant: THOMAS PAUL M
- Assignee: Paul M Thomas
- Current Assignee: Paul M Thomas
- Priority: US43481954 1954-06-07; US33518753 1953-02-05
- Main IPC: B65B27/02
- IPC: B65B27/02
Information query
