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
CA597289A
Inventor
B. Taylor Robert
V. Johnson Paul
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.)
STRUCTURAL CLAY PRODUCTS RESEARCH FOUNDATION
Original Assignee
STRUCTURAL CLAY PRODUCTS RESEARCH FOUNDATION
Publication date
Application grantedgrantedCritical
Publication of CA597289ApublicationCriticalpatent/CA597289A/en