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...Daniel Webster invented a "bull plow" to pull out tree stumps. It didn't catch on because it was huge and required four oxen to pull it!
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| Application No. | Application Title | Issue Date |
| 20100273077 | FUEL CELL, FUEL CELL SYSTEM, AND METHOD FOR OPERATING FUEL CELL A fuel cell of the present invention includes cell blocks (101, 102) each formed by stacking cells (51, 52) and a cooling medium connecting channel (103) connecting a cell block internal cooling medium channel (153A) of the cell block (101... | 10/28/2010 |
| 20100209807 | FUEL CELL, MEMBRANE-ELECTRODE ASSEMBLY, AND MEMBRANE-CATALYST LAYER ASSEMBLY A fuel cell of the present invention includes a membrane-electrode assembly (10), an anode separator (20), and a cathode separator (30). The membrane-electrode assembly (10) includes: a polymer electrolyte membrane (1); a first anode c... | 08/19/2010 |
| 20100173220 | POLYMER ELECTROLYTE FUEL CELL A polymer electrolyte fuel cell of the present invention comprises an electrolyte layer-electrode assembly (8), an anode separator (11) which is provided with a fuel gas channel (13), and a cathode separator (10) which is provided with an oxi... | 07/08/2010 |
| 20100068588 | MEMBRANE-MEMBRANE REINFORCING MEMBRANE ASSEMBLY, MEMBRANE-CATALYST LAYER ASSEMBLY, MEMBRANE-ELECTRODE ASSEMBLY, AND POLYMER ELECTROLYTE FUEL CELL A membrane-membrane reinforcing member assembly includes: a polymer electrolyte membrane (1) having a substantially square shape; a pair of membrane-like first membrane reinforcing members (10a) disposed on one main surface of the polymer electrolyt... | 03/18/2010 |
