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
CA602988A
Inventor
R. Brookman Peter
S. Brookman David
Brooks William
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.)
R S BROOKMAN Ltd
Original Assignee
R S BROOKMAN Ltd
Publication date
Application grantedgrantedCritical
Publication of CA602988ApublicationCriticalpatent/CA602988A/en