4. Railway switches and signals
  5. Cab signal or train control
  6. Speed-control systems

Robert H. Nelson

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Cooking sheet and lifter for poultry, meat and the like

Foods and beverages: apparatus – Cooking – Imperforate sheet or griddle type
Patent

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Igniter for a gas discharge pipe

Combustion – Separately supplied or controlled – physically related flame...
Patent

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Igniter for gas discharge pipes

Environmental heating and cooling; fluid handling and sanitary e – Heating or cooling – Element or attachment – not elsewhere specified
Patent

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System for controlling vehicle movement over a fixed guideway

Railway switches and signals – Cab signal or train control – Speed-control systems
Patent

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Profile ID: LFUS-PAI-P-1698320

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