4. Metal working
  5. Scale remover or preventor
  6. Mechanically powered operator

L. E. Mann

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Apparatus for producing welding rod

Metal working – Scale remover or preventor – Mechanically powered operator
Patent

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Brittle wire manufacturing method and apparatus

Metal working – Method of mechanical manufacture – Utilizing transitory attached element or associated separate...
Reexamination Certificate

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Welding rod method and apparatus

Electric heating – Metal heating – Weld rod structure
Patent

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Profile ID: LFUS-PAI-P-1372987

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