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
CA201,041A
Inventor
Richard H. Fink
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.)
Campbell Chain Co
Original Assignee
Campbell Chain Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Campbell Chain CofiledCriticalCampbell Chain Co
Priority to CA201,041ApriorityCriticalpatent/CA995877A/en
Application grantedgrantedCritical
Publication of CA995877ApublicationCriticalpatent/CA995877A/en