4. Railway switches and signals
  5. Electric automatic highway signals, mine doors, and gates
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Marengo Dominick

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McKee Richard W.

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Meyer Gerhard F.

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Modern Industries Signal Equipment, Inc.

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National Electric Gate Company Inc.

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National Foundry Sand Company

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Pace Joseph A.

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Pappas Spiro J.

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Parker John W.

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Railway Equipment Company

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Reibeling Charles A.

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Sass Ron C.

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Seng Glen F.

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Shahbaz Zalmai

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Sharkey John T.

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Spence Roy

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Svet, Jr. Frank A.

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Teasel William A.

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Thomas Marion V.

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Welk James E.

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