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
CA 34021
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.)
Propper Manufacturing Co Inc
OPTOTECHNIK GmbH
Original Assignee
Propper Manufacturing Co Inc
OPTOTECHNIK GmbH
Publication date
Priority to CA 34021priorityCriticalpatent/CA34021S/en
Application grantedgrantedCritical
Publication of CA34021SpublicationCriticalpatent/CA34021S/en