![]() ![]() B41J29/36- Devices, non-fluid media or methods for cancelling, correcting errors, underscoring or ruling for cancelling or correcting errors by overprinting.B41J29/26- Devices, non-fluid media or methods for cancelling, correcting errors, underscoring or ruling. ![]() B41J29/00- Details of, or accessories for, typewriters or selective printing mechanisms not otherwise provided for.MECHANISMS PRINTING OTHERWISE THAN FROM A FORME CORRECTION OF TYPOGRAPHICAL ERRORS B41J- TYPEWRITERS SELECTIVE PRINTING MECHANISMS, e.g.B41- PRINTING LINING MACHINES TYPEWRITERS STAMPS.238000006011 modification reaction Methods 0.000 description 2.238000006073 displacement reaction Methods 0.000 description 6.Application granted granted Critical Publication of US4492485A publication Critical patent/US4492485A/en Anticipated expiration legal-status Critical Status Expired - Lifetime legal-status Critical Current Links Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.) Filing date Publication date Application filed by Sears Roebuck and Co filed Critical Sears Roebuck and Co Priority to US06/183,547 priority Critical patent/US4492485A/en Assigned to SEARS, ROEBUCK & CO. ![]() Original Assignee Sears Roebuck and Co Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.) Gall Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Expired - Lifetime Application number US06/183,547 Inventor John C. Google Patents Error correcting typewriter for simplified word obliterationÄownload PDF Info Publication number US4492485A US4492485A US06/183,547 US18354780A US4492485A US 4492485 A US4492485 A US 4492485A US 18354780 A US18354780 A US 18354780A US 4492485 A US4492485 A US 4492485A Authority US United States Prior art keywords printing obliterating ribbon paper field Prior art date Legal status (The legal status is an assumption and is not a legal conclusion. Google Patents US4492485A - Error correcting typewriter for simplified word obliteration US4492485A - Error correcting typewriter for simplified word obliteration
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