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...that after Walter Hunt patented the safety pin in 1849, he sold the rights to it for $400?
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| Application No. | Application Title | Issue Date |
| 20100058779 | STORAGE OF NATURAL GAS IN LIQUID SOLVENTS AND METHODS TO ABSORB AND SEGREGATE NATURAL GAS INTO AND OUT OF LIQUID SOLVENTS Bulk storage of natural gas or methane is facilitated by absorbing and storing the gas in a liquefied medium through the interaction of moderate pressure, low temperature and a solvent medium. Systems and processes are provided that facilitate the absorption of natural ... | 03/11/2010 |
