| 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} |