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| Patents for R. Harlan Nehrig | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 3,941,352 | Mar. 02, 1976 | N.J. White, R.H. Nehrig | Bumper screw jack | |
 | 4,015,825 | Apr. 05, 1977 | R.S. Graafsma, R.H. Nehrig | Tiltable jack | |
 | 4,077,608 | Mar. 07, 1978 | R.H. Nehrig | Hydraulic hand jack | |
 | 4,078,383 | Mar. 14, 1978 | R.H. Nehrig | Hydraulic hand jack with needle release valve | |