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CA1247945A1 - - Google Patents

Info

Publication number
CA1247945A1
CA1247945A1 CA 1247945 A1 CA1247945 A1 CA 1247945A1
Authority
CA
Grant status
Grant
Patent type
Application number

Links

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Also Published As

Publication number Publication date Type
EP0217518A1 (en) 1987-04-08 application
CA1247945A (en) 1989-01-03 grant
US4659014A (en) 1987-04-21 grant