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| Patents for Leonard Poitras | |||||
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| Number | Date | Patentee | Title | Type | |
| CA-494,537 | Jul. 21, 1953 | L. Poitras | Combined adjustable school desk and seat | desks and tables | |
| CA-659,074 | Mar. 05, 1963 | J.L. Rochers | Combined school desk and chair | desks and tables | |