|
US2095131A
|
|
Filter
|
|
US2067396A
|
|
Oil reclaimer
|
|
US1974652A
|
|
Furnace and heating and ventilating system
|
|
US1471603A
|
|
Speed-changing power-transmission mechanism for paper-making machines and other similar machines
|
|
US1569182A
|
|
Packing
|
|
US1468634A
|
|
Lining or friction member for brake bands, brake shoes, or qther articles
|
|
US1407154A
|
|
Paper machine
|
|
US1492563A
|
|
Paper-making machine
|
|
US1283754A
|
|
Process of making a heat-insulating composition.
|
|
US933036A
|
|
Metallic compound or composition of matter and process of making the same.
|
|
US943826A
|
|
Nut-lock.
|
|
US819428A
|
|
Pipe-wrench.
|
|
US691941A
|
|
Handcuff.
|
|
US648124A
|
|
Rotary engine.
|
|
CA233070A
|
|
Paper machine
|
|
CA240181A
|
|
Speed changing power transmission mechanism for paper-making machines
|
|
CA263120A
|
|
Packing
|
