|
US1852509A
|
|
Bridge for stringed musical instruments
|
|
US1664248A
|
|
Theater-curtain-raising device
|
|
US1471454A
|
|
Apparatus for raising and lowering materials
|
|
US862315A
|
|
Acetylene-gas-burner tip.
|
|
US796302A
|
|
Process or method of burning acetylene-gas.
|
|
US795826A
|
|
Method of burning acetylene gas.
|
|
US692254A
|
|
Gas-burner.
|
|
US649278A
|
|
Acetylene-gas burner.
|
|
US678553A
|
|
Acetylene-gas burner.
|
|
US638175A
|
|
Method of generating acetylene gas.
|
|
US640888A
|
|
Acetylene-gas burner.
|
|
US640887A
|
|
Acetylene-gas burner.
|
|
US640886A
|
|
Acetylene-gas tip.
|
|
US630493A
|
|
Acetylene-gas burner.
|
|
US638449A
|
|
Acetylene-gas-generating lamp.
|
|
US638448A
|
|
Process of generating acetylene gas.
|
|
CA31253A
|
|
Soldering machine
|
|
CA30549A
|
|
Seam for sheet metal
|
|
CA30777A
|
|
Can assembling machine
|
|
US1025902A
|
|
Fuel.
|
