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.)
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.)
Yale Security Inc
Original Assignee
George O Rockwood
John W Skelley
Louis C Mcanly
Rockwood Manufacturing Co
Publication date
Application grantedgrantedCritical
Publication of CA267347ApublicationCriticalpatent/CA267347A/en