|
US2331463A
|
|
Saliva siphon
|
|
US1448528A
|
|
Centering device
|
|
US1386998A
|
|
Piston-ring
|
|
US1292735A
|
|
Fixture used in the manufacture of piston-rings.
|
|
US1386997A
|
|
Art or process of manufacturing piston-rings
|
|
US1258664A
|
|
Device for closing in slotted piston-rings.
|
|
US1167986A
|
|
Carbid-feed acetylene-generator.
|
|
US1019140A
|
|
Carbid-feed acetylene-generator.
|
|
US792885A
|
|
Coin-controlled vending-machine.
|
|
US730624A
|
|
Automatic vending-machine.
|
|
US728215A
|
|
Seat-back.
|
|
US728887A
|
|
Adjustable furniture.
|
|
US730623A
|
|
Adjustable furniture.
|
|
US1137850A
|
|
Method of making and incorporating stiffening-pieces in the forepart of boots and shoes.
|
