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
CA600998A
Inventor
E. Willett Leon
R. Smith Frank
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.)
CHAMBERLIN Co OF AMERICA
Original Assignee
CHAMBERLIN Co OF AMERICA
Publication date
Application grantedgrantedCritical
Publication of CA600998ApublicationCriticalpatent/CA600998A/en