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| All Patents in class 219/69.1 | |||||
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| Number | Date | Patentee | Title | Type | |
| 561,367 | Jun. 02, 1896 | G.L. Badger | Method and Apparatus for Dressing Stone | stone dressing machines | |
| 3,422,246 | Jan. 14, 1969 | T.A. Wetzel | Laser Cutting Machine Tool | laser cutting machines | |