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.)
Expired
Application number
CA791651A
Inventor
L. Verelst Johan
J. Van Paesschen August
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.)
Gevaert Photo Producten NV
Original Assignee
Gevaert Photo Producten NV
Publication date
Application grantedgrantedCritical
Publication of CA791651ApublicationCriticalpatent/CA791651A/en