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| HOME POWER, INC. | |
| Kerrwil Publications Ltd. | ||
| Fuel Cell Magazine | ||
| Battery Power Products & Technology Magazine | ||
| Business News Publishing BNP | ||
| PennWell Corporation / pennNET | ||
| PennWell Corporation / pennNET | ||
| Electrical Business | ||
| PennWell Corporation / pennNET | ||
| Power Engineering International | ||
| Webcom | ||
| Power Engineering | ||
| Webcom | ||
| HOME POWER, INC. | ||
| Webcom | ||
| Electric Light & Power | ||
| IEEE Electrical Insulation Magazine | ||
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