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| Patents for Norfield Industries | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 5,119,855 | Jun. 09, 1992 | B.D. Norlie, C.A. Knighten | Face frame component machining system | |
 | 6,227,793 | May 08, 2001 | C.A. Knighten | Door transport system | |