Title:
Mucking machine
United States Patent 2781140
Inventors:
Cryderman, Warner L.
Publication Date:
02/12/1957
Export Citation:
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Assignee:
SHAFT MACHINES LTD
Primary Class:
414/625
International Classes:
E02F3/28; E02F3/413; E21D1/04; E02F3/28; E02F3/40; E21D1/00
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US Patent References:
2731163Ditching machine having swingably mounted clamshell bucket
2643515Electric control system for expansible motor operated boom
2639048Fluid pressure actuated articulated boom
2606679Apparatus for use in shaft sinking
2456320Lift truck
1307009N/A