Nippon Electric Industry Co., Ltd.

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
4831580 Program generatorExpiredJul 10, 86May 16, 89[G06F]
4818927 Acceleration/deceleration control apparatus using slip speedExpiredApr 09, 87Apr 04, 89[H02P]
4413373 Pivot hinge with removable door closing deviceExpiredJun 29, 81Nov 08, 83[E05F]
4381089 Wound-tape radius detection system for a tape recorderExpiredNov 28, 80Apr 26, 83[B65H, G03B, G11B]
4325164 Offset pivot hinges with door closing devicesExpiredAug 15, 79Apr 20, 82[E05F]

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