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.)
AD-PHOTOSCOPE Co
Original Assignee
AD-PHOTOSCOPE Co
Publication date
Application grantedgrantedCritical
Publication of CA203324ApublicationCriticalpatent/CA203324A/fr