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POWER TRANSISTOR DRIVING CIRCUIT OF ELECTROMAGNETIC INDUCTION HEATING DEVICE

08/198,305 | U.S. Patent Application

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Location FILE REPOSITORY (FRANCONIA)
Filed Feb. 18, 1994
Examiner PHILIP H LEUNG
Class 219
Art Group 2106
Patent No. 5,397,878
Case Type Utility - 219/661000
Status Patent Expired Due to NonPayment of Maintenance Fees Under 37 CFR 1.362
Last Updated: 5 years, 6 months ago
Date # Transaction