Phelps Dodge Corporation. In matter of Phelps Dodge Corporation United Verde Branch and International Association of Machinists, Local No. 223; International Brotherhood of Boilermakers, Iron Ship Builders and Helpers, Local No. 406; International Brotherhood of Electrical Workers, Local No. B657; and International Brotherhood of Carpenters and Joiners, Local No. 1061, decision and direction of elections, cases nos. R-558 to R-561, decided Apr. 15, 1938.

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