![]() Original Assignee Xerox 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 or warranty as to the accuracy of the list.) Stinehour 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.) Active, expires Application number US14/528,126 Other versions US20160127603A1 Google Patents Security mark with anti-copyable effectÄownload PDF Info Publication number US10237442B2 US10237442B2 US14/528,126 US201414528126A US10237442B2 US 10237442 B2 US10237442 B2 US 10237442B2 US 201414528126 A US201414528126 A US 201414528126A US 10237442 B2 US10237442 B2 US 10237442B2 Authority US United States Prior art keywords mark dots pattern correlation security Prior art date Legal status (The legal status is an assumption and is not a legal conclusion. Google Patents US10237442B2 - Security mark with anti-copyable effect ![]() US10237442B2 - Security mark with anti-copyable effect ![]()
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