Andrew D. Keller

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Longmont, CO, US

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Patents Grantslast 30 patents

Information Patent Grant
Toner cartridge and method of replenishing toner to a xerographic d...
- Patent number 4,502,514
- Issue date Mar 5, 1985
- International Business Machines Corporation
- Philip D. Ballard
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY