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| Patents for Waldes Koh-I-Noor, Inc. | |||||
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| Number | Date | Patentee | Title | Type | |
| 2,483,380 | Sep. 27, 1949 | W. Duffy | Tool for Handling Open-Ended Spring Retaining Rings | pliers | |
| 2,487,803 | Nov. 15, 1949 | H. Heimann | Spring retaining ring | fasteners | |