US3037932A
|
|
Composition for preserving metal surfaces against rust
|
US2939437A
|
|
Process and composition for preserving metal surfaces against rust
|
US2444910A
|
|
Muzzle brake for guns
|
US2446994A
|
|
Explosive-operated shears
|
US2331295A
|
|
Black-out curtain device for doors or similar openings
|
US2029216A
|
|
Crank case ventilation
|
US2027365A
|
|
Windshield cleaning device
|
US1982625A
|
|
Dual manifold construction
|
US1953068A
|
|
Differential lubricating device
|
US1946475A
|
|
Gasket
|
US1982624A
|
|
Windshield cleaner
|
US1944160A
|
|
Windshield
|
US2014371A
|
|
Manifold
|
US1968119A
|
|
Ventilating system
|
US1916248A
|
|
Lubricator
|
US1966434A
|
|
Lubricating system
|
US1959702A
|
|
Apparatus for detecting forest fires
|
US1757230A
|
|
Piston
|