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| Patents for Edward Clifton Clapp | |||||
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| Number | Date | Patentee | Title | Type | |
| 468,642 | Feb. 09, 1892 | E.C. Clapp | Micrometer | micrometers | |
| 582,154 | May 04, 1897 | E.C. Clapp | Micrometer Gage | micrometers | |