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
CA739609A
Inventor
E. Radtke Gottfried
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.)
Sola Basic Industries Inc
Original Assignee
Gottfried E Radtke
Sola Basic Industries Inc
Publication date
Application grantedgrantedCritical
Publication of CA739609ApublicationCriticalpatent/CA739609A/en