Nippon Telecommunication Engineering Company

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
4652158 Armature support device for torsion spring print headExpiredAug 08, 86Mar 24, 87[B41J]
4634301 Print head with torsion springExpiredOct 18, 84Jan 06, 87[B41J]
4618277 Print headExpiredOct 17, 85Oct 21, 86[B41J]
4571101 Print headExpiredOct 19, 84Feb 18, 86[B41J]
4439247 Method for manufacture of high-strength high-electroconductivity copper alloyExpiredNov 22, 82Mar 27, 84[C22F]
4411538 Print-head of a dot-printerExpiredAug 05, 81Oct 25, 83[B41J]
4403875 Armature support device of a print headExpiredNov 20, 81Sep 13, 83[B41J]
4394093 Support means for print wireExpiredAug 05, 81Jul 19, 83[B41J]
4389128 Print head for a dot matrix printerExpiredAug 05, 81Jun 21, 83[B41J]

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