4. Communications: electrical
  5. Audible indication
  6. Weatherproofing

James E. Biersach

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Ball conditioning, sorting and collecting apparatus for circulat

Brushing – scrubbing – and general cleaning – Machines – With means to pass a solid cleaning agent and a fluid...
Patent

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Electronic warning apparatus

Communications: electrical – Audible indication – Diaphragm
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Energizing means for electronic warning apparatus

Communications: electrical – Audible indication – Diaphragm
Patent

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High efficiency phase and amplitude matched multiple horn electr

Communications: electrical – Audible indication – Pneumatic-type sound producer
Patent

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Omnidirectional siren

Communications: electrical – Audible indication – Weatherproofing
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Profile ID: LFUS-PAI-P-188330

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