Did You Know...
...When G.G. Hubbard learned of his future son-in-law's invention, he called it "only a toy." His daughter was engaged to a young man named Alexander Graham Bell.
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| Number | Title | Issue Date |
| 6193769 | Fuel cell for chafing dishes A fuel cell for use in chafing dishes includes a container with a combustible medium in the container. The combustible medium is primarily propylene glycol. The advantage of such a fuel cell is that it is non-toxic.... | 02/27/2001 |
