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.)
ESTELLE E GRIFFIN
PRESCOTT W COOKINGHAM
RICHARD E GRIFFIN
WALTER J MEISEN
Original Assignee
ESTELLE E GRIFFIN
PRESCOTT W COOKINGHAM
RICHARD E GRIFFIN
WALTER J MEISEN
Publication date
Application grantedgrantedCritical
Publication of CA543464ApublicationCriticalpatent/CA543464A/fr