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| Patents for A. O. Norton, Inc. | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,395,340 | Nov. 01, 1921 | F.L. Gormley | Speed Retarding Device for Lifting Jacks | lifting tools | |
| 1,395,341 | Nov. 01, 1921 | F.L. Gormley | Self Lowering Jack | lifting tools | |