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
CA783791A
Inventor
Lewison Alfred
Lewison Paul
J. Halpern Stephen
D. Reiser Richard
W. Lewison Edward
Brothman Abraham
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.)
Sangamo Electric Co
Original Assignee
Sangamo Electric Co
Publication date
Application grantedgrantedCritical
Publication of CA783791ApublicationCriticalpatent/CA783791A/en