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| All Patents in class 182/29 | |||||
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| Number | Date | Patentee | Title | Type | |
| 136,390 | Mar. 04, 1873 | H.C. Smith | Improvement in combined ironing-tables, lap-boards, and step-ladders | ironing tables | |
| 267,927 | Nov. 21, 1882 | F.V. Phillips | Convertible step-ladder | ||