Quotables
"Everyone acquainted with the subject will recognize it as a conspicuous failure."
Henry Morton, president of the Stevens Institute of Technology ; Said in 1880 about the light bulb
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| Number | Title | Issue Date |
| 4455223 | Froth flotation method for recovering metal values with polyhydroxy fatty acids An improved method in concentration of oxide ores by froth flotation process which comprises subjecting a sufficiently fine sized ore of a metal which can change the valency state from lower to higher by the action of inorganic oxidizing compounds in the ... | 06/19/1984 |
