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| Patents for Ermand L. Watelet | |||||
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| Number | Date | Patentee | Title | Type | |
| 2,271,904 | Feb. 03, 1942 | E.L. Watelet | Magnetic Work Holder | magnetic chucks | |
| 2,947,921 | Aug. 02, 1960 | E.L. Watelet | Fine Grid Permanent Magnetic Chuck | ||
| 3,131,482 | May 05, 1964 | N.E. Davies, E.L. Watelet | Micrometer with Adjustable Barrel Sleeve | micrometers | |