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
CA811573A
Inventor
P. Sonneville Roger
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.)
Individual
Original Assignee
Individual
Publication date
Application grantedgrantedCritical
Publication of CA811573ApublicationCriticalpatent/CA811573A/en
Improvements in reinforcements for pre-stressed concrete pipes and the like. and method & apparatus for the interconnection and manufacture of the reinforcements