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| Patents for John H. Davids | |||||
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| Number | Date | Patentee | Title | Type | |
| 2,849,857 | Sep. 02, 1958 | J.H. Davids | Control for Engine Starting Means | starters | |
| 3,561,407 | Feb. 09, 1971 | J.H. Davids, A.K. Antonsen, M.L. Foreman | Reversible Internal Combustion Engine Having Improved Fuel Control Means | fuel pumps | |