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
CA157,277A
Inventor
Roy W. Demeyer
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.)
General Signal Mfg Corp
Original Assignee
General Signal Mfg Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by General Signal Mfg CorpfiledCriticalGeneral Signal Mfg Corp
Priority to CA157,277ApriorityCriticalpatent/CA971389A/en
Application grantedgrantedCritical
Publication of CA971389ApublicationCriticalpatent/CA971389A/en