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
CA713361A
Inventor
W. Kaatz Herbert
Tobacman Leo
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.)
Randolph Manufacturing Co
Original Assignee
Herbert W Kaatz
Leo Tobacman
Randolph Manufacturing Co
Publication date
Application grantedgrantedCritical
Publication of CA713361ApublicationCriticalpatent/CA713361A/en