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| All Patents in class 280/47.27 | |||||
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| Number | Date | Patentee | Title | Type | |
| 939,406 | Nov. 09, 1909 | J.F. Fierke | Hand cart | material handling | |
| 4,046,391 | Sep. 06, 1977 | R.W. Pitan, E.L. Restad | Stair climbing and descending attachment for a hand truck | dollies, carts and hand trucks | |