4. Metal working
  5. Method of mechanical manufacture
  6. Assembling or joining

Melvin J. Stern

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Method for making a metal screen door frame

Metal working – Method of mechanical manufacture – Assembling or joining
Patent

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Unitized construction for sliding closures and method for making

Movable or removable closures – With means mounting closure for reciprocation – Revolving guide component; e.g. – roller or gear
Patent

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Window screen frame

Static structures (e.g. – buildings) – Openwork; e.g. – truss – trellis – grille – screen – frame – or... – Outside corner or peripherally bordered
Patent

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Profile ID: LFUS-PAI-P-68892

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