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
CA28443F
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.)
Ralph V Switzer Aldon Co
Original Assignee
Ralph V Switzer Aldon Co
Publication date
Priority to CA28443FpriorityCriticalpatent/CA28443S/en
Application grantedgrantedCritical
Publication of CA28443SpublicationCriticalpatent/CA28443S/en