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Publication number
CA1257929A1
CA1257929A1 CA 1257929 A1 CA1257929 A1 CA 1257929A1
Authority
CA
Grant status
Grant
Patent type
Application number

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Also Published As

Publication number Publication date Type
EP0220859B1 (en) 1993-03-03 grant
JPS62108678A (en) 1987-05-19 application
US4647975A (en) 1987-03-03 grant
DE3687877T2 (en) 1993-06-09 grant
CA1257929A (en) 1989-07-25 grant
JP2755366B2 (en) 1998-05-20 grant
EP0220859A2 (en) 1987-05-06 application
EP0220859A3 (en) 1988-09-28 application
DE3687877D1 (en) 1993-04-08 grant