Treaties and other international acts series 1561-1625 (with omissions). 1615. European Coal Organization, protocol between United States and other Governments, prolonging agreement of Jan. 4, 1946, concluded London Dec. 12, 1946, open for signature until Dec. 31, 1946; signed on behalf of United States Dec. 30, 1946, effective Jan. 1, 1947.

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