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| Patents Granted on 1979-02-13 | |||||
| Number | Date | Patentee | Title | Type | |
| 4,138,910 | Feb. 13, 1979 | J.L. Laird, Jr. | Cleated Chain Wrench | chain and strap wrenches | |
| 4,138,926 | Feb. 13, 1979 | N.O. Hogland | Apparatus for Removing Machining Burrs | deburring tools | |