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
CA686991A
Inventor
S. Boyajian Robert
B. Becker Bernard
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.)
LEWIS-SHEPARD Co
Original Assignee
LEWIS-SHEPARD Co
Publication date
Application grantedgrantedCritical
Publication of CA686991ApublicationCriticalpatent/CA686991A/en