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
CA777753A
Inventor
P. Roberts Gerald
Miles J. Willard, Jr.
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.)
Rogers Brothers Co
Original Assignee
Rogers Brothers Co
Publication date
Application grantedgrantedCritical
Publication of CA777753ApublicationCriticalpatent/CA777753A/en