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.)
Norand Corp
Original Assignee
Norand Corp
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 Norand CorpfiledCriticalNorand Corp
Priority to CA176,645ApriorityCriticalpatent/CA1039408A/fr
Application grantedgrantedCritical
Publication of CA1039408ApublicationCriticalpatent/CA1039408A/fr
Method of scanning documents to read characters thereon without interference from visible marks on the document which are not to be read by the scanner