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
CA642176A
Inventor
W. Page Richard
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.)
Chayes Dental Instrument Corp
Original Assignee
Chayes Dental Instrument Corp
Publication date
Application grantedgrantedCritical
Publication of CA642176ApublicationCriticalpatent/CA642176A/en