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JP1931792C - - Google Patents

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Publication number
JP1931792C
JP1931792C JP 1931792 C JP1931792 C JP 1931792C
Authority
JP
Grant status
Grant
Patent type
Application number

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Also Published As

Publication number Publication date Type
JPS58207650A (en) 1983-12-03 application
US4503386A (en) 1985-03-05 grant
JPH0660931B2 (en) 1994-08-10 grant