Patent US 5089981A: Revision history

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13 February 2022

  • curprev 12:0212:02, 13 February 2022Peter talk contribs 170 bytes +170 Created page with "{{Patent |Office=US |Number=5089981A |Title=Hybrid form digital filter |Company=Audio Precision |Inventors=Richard Cabot |Filing date=1989-04-24 |Grant date=1992-02-18 }}"