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
CA617747A
Inventor
E. Schulze Robert
J. Heartstedt Edmund
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.)
CULLIGAN
Original Assignee
CULLIGAN
Edmund J Heartstedt
Robert E Schulze
Publication date
Application grantedgrantedCritical
Publication of CA617747ApublicationCriticalpatent/CA617747A/en