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
CA607220A
Inventor
E. Miller Earl
C. Rehm Adolph
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.)
James Heddons Sons
Original Assignee
Adolph C Rehm
James Heddons Sons
Publication date
Application grantedgrantedCritical
Publication of CA607220ApublicationCriticalpatent/CA607220A/en