|
US2740595A
|
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Helicopter with fuselage-encircling lift rotor means
|
|
US2786410A
|
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Hydraulic press construction
|
|
US2556641A
|
|
Grinder for pigments and other materials
|
|
US2527871A
|
|
Toolholder
|
|
US2537391A
|
|
Hydraulic ram device with intermittent high-pressure fluid supply
|
|
US2448245A
|
|
Grinding fixture
|
|
US2400187A
|
|
Rotary cutting tool
|
|
US2369273A
|
|
Rotary cutting tool
|
|
US2345318A
|
|
Radial precision tapping machine
|
|
US2343632A
|
|
Tap construction
|
|
US2313312A
|
|
Toolholder
|
|
US2290936A
|
|
Internal combustion engine
|
|
US2253493A
|
|
Machine tool
|
|
US2327006A
|
|
Fluid supply regulator
|
|
US2244185A
|
|
Tool mounting
|
|
US2253492A
|
|
Machine tool
|
|
US2253491A
|
|
Threading tool
|
|
US2257364A
|
|
Machine tool
|
|
US2253490A
|
|
Internal combustion engine
|
|
US1855174A
|
|
Power application and control means
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