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
CA865902A
Inventor
Silverman Abe
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.)
SILVECO PRODUCTS
Original Assignee
SILVECO PRODUCTS
Publication date
Application grantedgrantedCritical
Publication of CA865902ApublicationCriticalpatent/CA865902A/en