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.)
QEST PRODUCTS
Original Assignee
QEST PRODUCTS
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Filing date
Publication date
Priority claimed from US381254Aexternal-prioritypatent/US3917497A/en
Priority claimed from CA183,173Aexternal-prioritypatent/CA1006318A/en
Application filed by QEST PRODUCTSfiledCriticalQEST PRODUCTS
Priority to CA250,540ApriorityCriticalpatent/CA1031003A/fr
Application grantedgrantedCritical
Publication of CA1031003ApublicationCriticalpatent/CA1031003A/fr