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US2770231A
|
|
Respirator system
|
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US2770232A
|
|
Respirator system
|
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US2702079A
|
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Cutting and welding torch
|
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US2672187A
|
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Torch tip mounting
|
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US2672186A
|
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Automatic gas burning torch and pilot light
|
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US2552873A
|
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Cutting torch
|
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US2535873A
|
|
Oxygen-acetylene torch
|
|
US2677416A
|
|
Oxygen and acetylene torch
|
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US2609281A
|
|
Flashback arrester
|
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US2611424A
|
|
Pressure-operated antibackflow device for cutting torches
|
|
US2636276A
|
|
Carbide level indicator
|
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US2531006A
|
|
Tip for cutting blowtorches
|
|
US2519939A
|
|
Cutting torch
|
|
US2476777A
|
|
Combination welding and cutting torch
|
|
US2351787A
|
|
Torch tip
|
|
US2305203A
|
|
Acetylene generator
|
|
US2344219A
|
|
Cutting torch
|
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US2254758A
|
|
Process of making torch tips
|
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US2199248A
|
|
Acetylene generator
|
|
US2258340A
|
|
Cutting torch
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