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
CA629368A
Inventor
Frank E. Glass, 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.)
Grand Rapids Hardware Co
Original Assignee
Grand Rapids Hardware Co
Publication date
Application grantedgrantedCritical
Publication of CA629368ApublicationCriticalpatent/CA629368A/en