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Energy from Natural Resources => Gravity powered devices => Topic started by: iacob alex on March 18, 2009, 03:54:52 PM

Title: Flapping Hand -Crank...
Post by: iacob alex on March 18, 2009, 03:54:52 PM

...you can find at www.geocities.com/iacob_alex ,then click on "Some_Drafts"/text007.jpg ,with the title "Flapping Hand-Crank".

All the Bests! / Alex

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