4. Metal tools and implements, making
  5. Blank or process
  6. Die

John R. Archer

Inventor

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Apparatus for bending metal strip

Metal deforming – With use of control means energized in response to activator... – Metal deforming by use of roller or roller-like tool element
Patent

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Apparatus for constructing tools

Metal tools and implements – making – Machines – Die-forming
Patent

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Arc-fault detecting circuit breaker system

Electricity: electrical systems and devices – Safety and protection of systems and devices – Load shunting by fault responsive means
Reexamination Certificate

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Arc-fault detecting circuit-breaker system with status...

Electricity: magnetically operated switches – magnets – and electr – Electromagnetically actuated switches – Automatic circuit-interrupting devices
Reexamination Certificate

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Deflection yoke incorporating a permeable corrector

Electricity: magnetically operated switches – magnets – and electr – Magnets and electromagnets – Electron or ion beam deflecting type
Patent

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Profile ID: LFUS-PAI-P-226100

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