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
CA738661A
Inventor
J. Franklin John
Ii Edwin W. Hine
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.)
Proctor and Schwartz Inc
Original Assignee
Proctor and Schwartz Inc
Publication date
Application grantedgrantedCritical
Publication of CA738661ApublicationCriticalpatent/CA738661A/en