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| Patents for De Lancy Crittenden | |||||
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| Number | Date | Patentee | Title | Type | |
| 486,882 | Nov. 29, 1892 | H.W. Morgan | Label-attaching machine | box making machines | |
| 517,705 | Apr. 03, 1894 | H.W. Morgan | Grooving Machine | box making machines | |