Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
INNOVATIVE RESEARCH Inc
Original Assignee
INNOVATIVE RESEARCH INC.
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 as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by INNOVATIVE RESEARCH INC.filedCriticalINNOVATIVE RESEARCH INC.
Priority to CA000496269ApriorityCriticalpatent/CA1247721A/fr
Priority to EP86309108Aprioritypatent/EP0226349B1/fr
Priority to DE198686309108Tprioritypatent/DE226349T1/de
Priority to DE8686309108Tprioritypatent/DE3678678D1/de
Priority to US06/934,709prioritypatent/US4723376A/en
Application grantedgrantedCritical
Publication of CA1247721ApublicationCriticalpatent/CA1247721A/fr
Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes
(AREA)
CA000496269A1982-11-251985-11-25Dispositif de positionnement commande numeriquement pour meuleuse a came de bord de lentille opthalmique
ExpiredCA1247721A
(fr)
Recording device having rotatable matrix unit and sensor means for detecting relative movement direction, relative speed and rotation angle of matrix column