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Priority claimed from US05/176,916external-prioritypatent/US3941195A/en
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Publication of JPS4835602ApublicationCriticalpatent/JPS4835602A/ja
Publication of JPS5815572B2publicationCriticalpatent/JPS5815572B2/ja
E02F3/76—Graders, bulldozers, or the like with scraper plates or ploughshare-like elements; Levelling scarifying devices
E02F3/7609—Scraper blade mounted forwardly of the tractor on a pair of pivoting arms which are linked to the sides of the tractor, e.g. bulldozers
E02F3/7618—Scraper blade mounted forwardly of the tractor on a pair of pivoting arms which are linked to the sides of the tractor, e.g. bulldozers with the scraper blade adjustable relative to the pivoting arms about a horizontal axis