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| Patents for George M. Walraven | |||||
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| Number | Date | Patentee | Title | Type | |
| 2,823,542 | Feb. 18, 1958 | M.K. Kuehl, G.M. Walraven | Compression Gauge for Internal Combustion Engines and the Like | ||
| 2,909,835 | Oct. 27, 1959 | G.M. Walraven | Stud Puller for Rocker Arms and thr Like | ||