Invention Grant
- Patent Title: Writing shelf
- Patent Title (中): 书写架
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Application No.: US45699230Application Date: 1930-05-29
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Publication No.: US1963721APublication Date: 1934-06-19
- Inventor: SMITH EDWARD M
- Applicant: BELL TELEPHONE LABOR INC
- Assignee: Nokia Bell Labs
- Current Assignee: Nokia Bell Labs
- Priority: US45699230 1930-05-29
- Main IPC: A47B5/04
- IPC: A47B5/04
Information query
