Revision history of "File:Wapi-before-after.jpg"

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  • (cur | prev) 11:31, 10 December 2009‎ WikiSysop (talk | contribs)‎ . . (233 bytes) (+233)‎ . . (The WAPI (water pasteurization indicator) developed by Solar Cookers International (Photo shows a water pasteurization indicator ready to place in a pot of water (left) and after registering water pasteurization temperature (right.))
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