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Canadian Patent Database / Base de données sur les brevets canadiens
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MPEP 1302.09: Classification, Print Figure, and Other Notations, October 2023 (BitLaw)
Patents awarded to Douglas Boynton Quine
Patent 3137161 Summary - Canadian Patents Database
Patents awarded to Douglas Boynton Quine
Patent Family Trees Created From PAIR Data - ClaimMaster Software
Patent 2767421 Summary - Canadian Patents Database
Patent Family Trees Created From PAIR Data - ClaimMaster Software