|
US3189923A
|
|
Thread cutting tool holder supported by turret type lathe
|
|
US1885486A
|
|
Convertible tractor
|
|
US1885485A
|
|
Convertible noiseless tracklayer tractor
|
|
US1763826A
|
|
Cushion-tire track-layer tractor
|
|
US1660105A
|
|
Convertible tractor
|
|
US1660104A
|
|
Fast-speed tractor
|
|
US1660103A
|
|
High-speed self-laying track vehicle
|
|
US1660102A
|
|
High-speed tracklaying tractor
|
|
US1660101A
|
|
High-speed tractor
|
|
US1660099A
|
|
Tracklayer chain
|
|
US1660100A
|
|
High-speed tractor
|
|
US1656610A
|
|
Chain link hinge
|
|
US996807A
|
|
Apparatus for shaping and sharpening rock-drill bits.
|
|
US1006306A
|
|
Apparatus for shaping and sharpening rock-drill bits.
|
|
US936677A
|
|
Apparatus for utilizing energy derived from explosions.
|
|
US975731A
|
|
Means for applying fluid metals.
|
|
US891300A
|
|
Ore-roasting furnace.
|
|
US854766A
|
|
Ore-roasting furnace.
|
|
US761050A
|
|
Ore-roasting furnace.
|
|
US950082A
|
|
Utilizing heat energy.
|
