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
CA674630A
Inventor
Williams Wyman
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.)
DALE L SCHUBERT AND INDUSTRIAL DEVELOPMENT Co
Original Assignee
DALE L SCHUBERT AND INDUSTRIAL DEVELOPMENT Co
Publication date
Application grantedgrantedCritical
Publication of CA674630ApublicationCriticalpatent/CA674630A/en