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Tag : The Johnson 621 scraper

Caterpillar

The Caterpillar J621 elevating scraper

Contrafed PUblishing
by Contrafed PUblishing
A logical development of the Caterpillar J619, Caterpillar’s J621 elevating scraper was introduced in 1965.   By Richard Campbell The Caterpillar J621 was a pairing of...