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| Patents Granted on 1969-04-15 | |||||
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| Number | Date | Patentee | Title | Type | |
| 3,438,329 | Apr. 15, 1969 | T.W. Fuller | Multistage Hydraulic Pump Having Improved Diffuser Means | hydraulic pumps | |
| 3,439,346 | Apr. 15, 1969 | J.K. McGee | Record Reading System for Simultaneous Control of a Plurality of Devices | nc and cnc apparatus | |