US2387360A
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Closure for pressure vessels
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US1709886A
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Cutting torch
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US1675668A
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Torch tip
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US1703180A
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Fluid-control valve
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US1644157A
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Method of making torch tips
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US1651232A
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Process of making torch tips
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US1634274A
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Process of making oxyfuel torch tips
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US1646602A
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Oxy-fuel gas tip and process of making
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US1546038A
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Preheating torch and method of operating the same
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US1539606A
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Carbide-feeding means
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US1736673A
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Acetylene-gas generator
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US1709885A
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Controlling means for carbide feeders
|
US1478405A
|
|
Carbide-feeding apparatus
|
US1521335A
|
|
Preheating torch
|
US1480310A
|
|
Cutting torch tip
|
US1452258A
|
|
Welding-torch tip
|
CA187315A
|
|
Acetylene torch
|
US1280884A
|
|
Acetylene welding-torch.
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CA169500A
|
|
Acetylene blow pipe
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CA169502A
|
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Acetylene generator
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