|
US2575321A
|
|
Rotary hoe disk
|
|
US2524943A
|
|
Plow and pulverizer
|
|
US2501364A
|
|
Rotary land tilling apparatus
|
|
US2430148A
|
|
Rotary trash cutter and tilling apparatus
|
|
US2455148A
|
|
Motor-driven rotary digging apparatus
|
|
US2455147A
|
|
Means to connect tractor and trailer sections and for effecting steering thereof
|
|
US2532683A
|
|
Helicopter having adjustable rotors and stabilizing fins
|
|
US2000624A
|
|
Chair
|
|
US1910655A
|
|
Training apparatus for flying machine pilots
|
|
US1890137A
|
|
Amusement railway
|
|
US1823010A
|
|
Amusement ride
|
|
US1783268A
|
|
Amusement ride and car therefor
|
|
US1940233A
|
|
Amusement ride
|
|
US1840988A
|
|
Amusement ride and vehicle therefor
|
|
US1767626A
|
|
Amusement ride
|
|
US1806102A
|
|
Amusement ride
|
|
US1881151A
|
|
Car for amusement rides
|
|
US1732248A
|
|
Amusement ride
|
|
US1805266A
|
|
Amusement coaster railway
|
|
US1654670A
|
|
Coaster train
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