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All Patents of Type: marking knives | |||||
Number | Date | Patentee | Title | Type | |
445,276 | Jan. 27, 1891 | W.H. Johnson | Marking Knife | marking knives | |
678,643 | Jul. 16, 1901 | M.F. Clarke | Marking-Tool | marking knives | |
5,509,205 | Apr. 23, 1996 | N. Ragland, III | Utility knife having blade retention feature | marking knives | |
5,909,930 | Jun. 08, 1999 | J.F. Mariol, H.N. Ragland, III | Retractable blade utility knife having quick change feature | knives and cutters |