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.)
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.)
Rosenblads Patenter AB
American Heat Reclaiming Corp
Original Assignee
Rosenblads Patenter AB
American Heat Reclaiming Corp
Publication date
Application grantedgrantedCritical
Publication of CA402746ApublicationCriticalpatent/CA402746A/fr