Demotech, design for self reliance

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You may need an overview of items that relate to energy conversion, but are described elsewhere. This record offers you first the titles, then a very short description plus of course the link to the place where this item is fully covered.

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A pulley to ease irrigation of one's garden, its manufacture and sale is part of the local rural economy. It should be light weight, smoothly running and easy to repair.
light weight pulley,
in development, part of the Workforce design program
guide wheel,
in development, part of the RopePump design program
wheels for carts
in development, part of the Workforce design program
and more ....

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