Invention Grant
- Patent Title: Drawing set
- Patent Title (中): 绘图集
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Application No.: US42532342Application Date: 1942-01-01
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Publication No.: US2323521APublication Date: 1943-07-06
- Inventor: DE JOURNETTE ALMA MAE
- Applicant: DE JOURNETTE ALMA MAE
- Assignee: Journette Alma Mae De
- Current Assignee: Journette Alma Mae De
- Priority: US42532342 1942-01-01
- Main IPC: G09B11/06
- IPC: G09B11/06
Information query
