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.)
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Proprietary Technologies Inc
Original Assignee
Proprietary Technologies Inc
Publication date
Priority to CA 88508priorityCriticalpatent/CA88508S/en
Application grantedgrantedCritical
Publication of CA88508SpublicationCriticalpatent/CA88508S/en