| 1950 - 1688 páginas
...device jewels. Sapphire and ruby vee jewels. Sapphire and ruby. Group 2 materials, although strategic, "are not recommended for stock-pile purchase but offer...study before a final determination can be made on stock piling or other action to assure adequate supplies in a future emergency." Materials relegated... | |
| United States. Congress. House. Public lands - 1949 - 492 páginas
...because of the lack of the means for obtaining adequate domestic production to meet emergency needs. "Group 2 comprises those strategic and critical materials...study before a final determination can be made on stock piling or other action to assure adequate supplies in a future emergency." 4. Materials in all... | |
| 1950 - 1334 páginas
...because of the lack of the means for obtaining adequate domestic production to meet emergency needs . Group "2" comprises those Strategic and Critical Materials...to assure adequate supplies in a future emergency. The list does not include fissionable materials, responsibility for which rests with the Atomic Energy... | |
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