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| All Patents in class 607/115 | |||||
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| Number | Date | Patentee | Title | Type | |
| 287,170 | Oct. 23, 1883 | A.H. Roovers, A.W. Roovers | Electric cane | ||
| 811,094 | Jan. 30, 1906 | W. Robertson | Mattress | ||