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
CA771345A
Inventor
Harold L. Humes, Jr.
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.)
PARAMETRICS RESEARCH AND DEVELOPMENT Co
Original Assignee
PARAMETRICS RESEARCH AND DEVELOPMENT Co
Publication date
Application grantedgrantedCritical
Publication of CA771345ApublicationCriticalpatent/CA771345A/en