Assignee

GARDNER JOHN P

GB·2 granted patents·25 citations·filing 1986–1987

Technology mixG11B2

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2 records

0172US4725899AReproduction of magnetic recordingsGARDNER JOHN P·Filed 1986·Granted Feb 16, 1988·19 cites·10 claims
0244US4987503AMethod to produce pre-recorded tape cassettesGARDNER JOHN P·Filed 1987·Granted Jan 22, 1991·6 cites·11 claims

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