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
CA224,256A
Inventor
Robert F. Wolf
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.)
Waukesha Foundry Co Inc
Original Assignee
Waukesha Foundry Co Inc
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
Priority claimed from US05/527,573external-prioritypatent/US3953776A/en
Application filed by Waukesha Foundry Co IncfiledCriticalWaukesha Foundry Co Inc
Application grantedgrantedCritical
Publication of CA1003035ApublicationCriticalpatent/CA1003035A/en