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Welding helmet

Apparel – Guard or protector – For wearer's head
Patent

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Welding helmet

Apparel – Guard or protector – For wearer's head
Reexamination Certificate

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Welding helmet

Apparel – Guard or protector – For wearer's head
Patent

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Welding helmet

Apparel – Guard or protector – For wearer's head
Patent

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Welding helmet and face plate

Apparel – Guard or protector – For wearer's head
Reexamination Certificate

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Welding helmet having auto-darkening and manually adjustable len

Apparel – Guard or protector – For wearer's head
Patent

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Welding helmet having cartridge coupling structure

Apparel – Guard or protector – For wearer's head
Reexamination Certificate

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Welding helmet removable cartridge

Apparel – Guard or protector – For wearer's head
Reexamination Certificate

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Welding helmet with air circulating system

Apparel – Guard or protector – For wearer's head
Patent

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Welding helmet with conical pivoting mechanism for head gear...

Apparel – Guard or protector – For wearer's head
Reexamination Certificate

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Welding helmet with removable electronic quick change cartridge

Apparel – Guard or protector – For wearer's head
Patent

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Welding helmet with removable face plate and lens cartridge

Apparel – Guard or protector – For wearer's head
Patent

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Welding hood with periscopic view piece

Apparel – Guard or protector – For wearer's head
Patent

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Welding mask corona barrier

Apparel – Guard or protector – For wearer's head
Patent

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Welding mask lens spring and flash barrier

Apparel – Guard or protector – For wearer's head
Patent

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Welding mask to prevent orange flare and method of welding

Apparel – Guard or protector – For wearer's head
Patent

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Welding mask window door automatic operation

Apparel – Guard or protector – For wearer's head
Patent

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Welding mask with automatic obscuring of the visual field

Apparel – Guard or protector – For wearer's head
Patent

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Welding mask with slatted window

Apparel – Guard or protector – For wearer's head
Reexamination Certificate

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Welding operation liquid crystal protection mask

Apparel – Guard or protector – For wearer's head
Reexamination Certificate

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