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
CA613248A
Inventor
G. Lassen Hans
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.)
ADOLPH E HULCHER
HERBERT R LEWIS
Original Assignee
ADOLPH E HULCHER
HERBERT R LEWIS
Publication date
Application grantedgrantedCritical
Publication of CA613248ApublicationCriticalpatent/CA613248A/en