Pennsylvania Shipping Co. In matter of Pennsylvania Shipping Co. and United Licensed Officers of U. S. A.; in matter of [same] and [same]; in matter of [same] and National Marine Engineers' Beneficial Association; in matter of [same] and National Organization Masters, Mates, and Pilots of America; in matter of [same] and American Radio Telegraphists Ass'n Local No. 2, cases nos. R-1139 to R-1143; supplemental decision, certification of representafives, and order, July 28, 1939.

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