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
CA684986A
Inventor
Hohwart George
J. Brundza Vites
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.)
NA Woodworth Co
Original Assignee
NA Woodworth Co
Publication date
Application grantedgrantedCritical
Publication of CA684986ApublicationCriticalpatent/CA684986A/en