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
CA592811A
Inventor
O. Kjeldgaard Niels
Ploug Jorgen
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.)
KNUD ABILDGAARD-ELLING
Original Assignee
KNUD ABILDGAARD-ELLING
Publication date
Application grantedgrantedCritical
Publication of CA592811ApublicationCriticalpatent/CA592811A/en