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
CA917022A
Inventor
Mitchell L. Wer Bell, Iii
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.)
ENVIRONMENTAL INDUSTRIES
Original Assignee
ENVIRONMENTAL INDUSTRIES
Publication date
Application grantedgrantedCritical
Publication of CA917022ApublicationCriticalpatent/CA917022A/en