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
CA721558A
Inventor
Husted-Andersen Sven
Maenz Herbert
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.)
J PFRIMMER AND Co
Original Assignee
J PFRIMMER AND Co
Publication date
Application grantedgrantedCritical
Publication of CA721558ApublicationCriticalpatent/CA721558A/en