|
US1983884A
|
|
Hydraulic control gear
|
|
US1917971A
|
|
Collar for personal wear
|
|
US1896978A
|
|
Caster
|
|
US1932892A
|
|
Rotary engine and pump
|
|
US1829930A
|
|
Hydraulically operated variable pitch air screw
|
|
US1709194A
|
|
Hydraulic pump and motor
|
|
US1823171A
|
|
Filtration
|
|
US1666381A
|
|
Rotary filter
|
|
US1723617A
|
|
Feathering screw propeller
|
|
US1755670A
|
|
Furniture and like caster
|
|
US1557585A
|
|
Filter
|
|
US1757483A
|
|
Means for the hydraulic transmission of power
|
|
US1773797A
|
|
Method of and apparatus for separating out and removing matter suspended in alpha fluid
|
|
US1466622A
|
|
Radial-cylinder hydraulic clutch
|
|
US1462600A
|
|
Hydraulic clutch or coupler
|
|
CA93863A
|
|
Friction clutch, reversing gear, brake, etc.
|
