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.)
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.)
HAROLD F HURLBURT
Original Assignee
HAROLD F HURLBURT
Publication date
Application grantedgrantedCritical
Publication of CA548869ApublicationCriticalpatent/CA548869A/fr