305 / | HD | WHEEL SUBSTITUTES FOR LAND VEHICLES |
|
185 | | TRACKS OR TREADS {14} |
40 | DF | .~> Cable connected treads |
41 | DF | .~> Resilient connection between treads {2} |
44 | DF | .~> Steerable |
45 | DF | .~> Adjustable connection between treads |
46 | DF | .~> With resiliently biased ground engaging portion |
47 | DF | .~> With sag prevention means {1} |
50 | DF | .~> Track treads interconnected without separate fastening means |
51 | DF | .~> With street plate |
52 | DF | .~> With roller means |
53 | DF | .~> One piece track tread |
186 | DF | .~> Having master link |
187 | DF | .~> With detachable grouser for endless chain track {4} |
193 | DF | .~> With guide means for interfitting with sprocket wheel or roller {3} |
202 | DF | .~> Separate transverse connector pin between treads {3} |