4. Road structure, process, or apparatus
  5. Drain or gutter
  6. Street or curb inlet for surface drainage

Jack Mainville

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Trench grate

Road structure – process – or apparatus – Drain or gutter – Street or curb inlet for surface drainage
Patent

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Welding apparatus for simultaneously applying parallel welds to

Electric heating – Metal heating – By arc
Patent

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Welding jig apparatus

Work holders – Plural holders to hold workpieces relative to each other – Workpieces normal to each other
Patent

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Profile ID: LFUS-PAI-P-282336

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