4. Electricity: measuring and testing
  5. Measuring, testing, or sensing electricity, per se
  6. Frequency of cyclic current or voltage

William H. Kamstra

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Apparatus for bonding electrical contacts to printed wiring circ

Adhesive bonding and miscellaneous chemical manufacture – Surface bonding means and/or assembly means therefor – With cutting – punching – piercing – severing – or tearing
Patent

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Circuit board interconnection apparatus

Geometrical instruments
Patent

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Coaxial cable switch

Electricity: magnetically operated switches – magnets – and electr – Electromagnetically actuated switches – Radio frequency switch
Patent

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Conductor cable untwisting tool

Tools – Receptacle closure remover – Gripping type
Patent

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Coordinate switch construction

Electricity: magnetically operated switches – magnets – and electr – Electromagnetically actuated switches – Multiple contact type
Patent

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Profile ID: LFUS-PAI-P-224473

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