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| All Patents in class 5/616 | |||||
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| Number | Date | Patentee | Title | Type | |
| 2,999,920 | Sep. 12, 1961 | S.S. Brown | Motorized adjustable hospital bed | gear motors | |
| 3,005,999 | Oct. 31, 1961 | S.S. Brown | Motorized adjustable hospital bed | ||