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| Patents for Girard S. Haviland | |||||
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| Number | Date | Patentee | Title | Type | |
| 2,746,758 | May 22, 1956 | G.S. Haviland, A.M. Stoner | Chucks | metal lathe chucks | |
| 2,816,768 | Dec. 17, 1957 | A.M. Stoner, G.S. Haviland | Lever operated collet chuck | metal lathe chucks | |
| CA-563,364 | Sep. 16, 1958 | A.M. Stoner, G.S. Haviland | Lever operated collet chuck | metal lathe chucks | |