4. Communications: electrical
  5. Digital comparator systems

Bernard E. Callahan

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Slip-slide detector system for railway car wheels

Fluid-pressure and analogous brake systems – Speed-controlled – Having a valve system responsive to a wheel lock signal
Patent

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System for telecommunicating vehicle operation data between a gr

Communications: electrical – Digital comparator systems
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Vehicular data handling and control system

Boots – shoes – and leggings
Patent

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Profile ID: LFUS-PAI-P-298810

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