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Priority to JP1985198272UpriorityCriticalpatent/JPH0418779Y2/ja
Publication of JPS62106771UpublicationCriticalpatent/JPS62106771U/ja
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Publication of JPH0418779Y2publicationCriticalpatent/JPH0418779Y2/ja
E02F3/96—Dredgers; Soil-shifting machines mechanically-driven with arrangements for alternate or simultaneous use of different digging elements
E02F3/966—Dredgers; Soil-shifting machines mechanically-driven with arrangements for alternate or simultaneous use of different digging elements of hammer-type tools
