Index of /bitsavers/pdf/phitech/patents/

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pat3590167.pdf                                     28-Aug-2019 19:09              359194
pat3879756.pdf                                     28-Aug-2019 19:09              996387
pat3968520.pdf                                     28-Aug-2019 19:09             1050084
pat4155033.pdf                                     28-Aug-2019 19:09              688963
pat4636880.pdf                                     28-Aug-2019 19:09             1062973