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Patents Granted on 1988-12-__
Patents 1 - 6 of 6
First set of recordsLast set of records
4,789,001Dec. 06, 1988L.W. Durham, B.S. BackeOperating System for a Valve
4,790,233Dec. 13, 1988L.W. Durham, B.S. BackeMethod and Apparatus for Controlling Hydraulic Systemsmachine tool controls
4,791,834Dec. 20, 1988G.J. FederighiPressure metering cork extractornon worm cork extractors
4,792,267Dec. 20, 1988R.J. WarnerCarriage for machine tool
D299,146Dec. 27, 1988H. Pollak, J.W. MaugerSurface mounted power tooljointers
4,793,222Dec. 27, 1988A.F. BeugelsdykRatcheting Tool Driver, &c.ratcheting screwdrivers
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