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US3335470A
|
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Collapsible wedge for cable connection
|
|
US3198263A
|
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Power means for rotary drill apparatus
|
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US2660253A
|
|
Supporting propulsion means for draglines and the like
|
|
US2676785A
|
|
Hydraulically-controlled winch assembly
|
|
US2660317A
|
|
Fluid filter
|
|
US2660404A
|
|
Control for pneumatic cable-tool drills
|
|
US2569458A
|
|
Front end for excavating machines
|
|
US2463537A
|
|
Guide for differential cylinderpiston assemblies
|
|
US2669043A
|
|
Dumping control for scrapers
|
|
US2601732A
|
|
Swivel for bulldozer blades
|
|
US2497900A
|
|
Fairlead for semitrailer scrapers or wagons
|
|
US2450905A
|
|
Bulldozer attachment for jeeps
|
|
US2380986A
|
|
Elevating scraper
|
|
US2378915A
|
|
Suspension for crane booms
|
|
US2123904A
|
|
Slack take-up for thrust ropes of power shovels
|
|
US2101091A
|
|
Stone box
|
|
US2035858A
|
|
Creeping traction
|
|
US1987613A
|
|
Hydraulic thrust mechanism for power shovels
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