4. Communications: electrical
  5. Audible indication
  6. Pneumatic-type sound producer

Herman E. Sheffield

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McCulloh receiver

Communications: electrical – Audible indication – Pneumatic-type sound producer
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Programmable control circuit for controlling the on-off operatio

Boots – shoes – and leggings
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Solar energy device and method

Optics: measuring and testing – Photometers – Photoelectric
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Profile ID: LFUS-PAI-P-1451654

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