Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
E02F3/46—Dredgers; Soil-shifting machines mechanically-driven with reciprocating digging or scraping elements moved by cables or hoisting ropes ; Drives or control devices therefor
E02F3/50—Dredgers; Soil-shifting machines mechanically-driven with reciprocating digging or scraping elements moved by cables or hoisting ropes ; Drives or control devices therefor with buckets or other digging elements moved along a rigid guideway