4. Radiant energy
  5. Photocells; circuits and apparatus
  6. Photocell controlled circuit

James A. Willmore

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Bar code reader with diode feedback in amplifier

Radiant energy – Photocells; circuits and apparatus – Photocell controlled circuit
Patent

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Head for optical card reader

Registers – Coded record sensors – Particular sensor structure
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Portable seed spreader

Fluid sprinkling – spraying – and diffusing – Container for non-fluid material – and scattering means – Body supported
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Tactile feel device

Electricity: magnetically operated switches – magnets – and electr – Magnets and electromagnets – Magnet structure or material
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Profile ID: LFUS-PAI-P-855930

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