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
CA715071A
Inventor
G. Jeremias Charles
Frederick E. Barwick, 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.)
Martin Marietta Corp
Original Assignee
Martin Marietta Corp
Publication date
Application grantedgrantedCritical
Publication of CA715071ApublicationCriticalpatent/CA715071A/en