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  1. How to invent and build prototypes out of plastic, wood or metal from your

    How to invent and build prototypes out of plastic, wood or metal from your

    At http://www.rentecs.com/index_003.htm you can an informative book "How to invent and build prototypes out of Plastic, Wood or Metal from your own home. Then patent it." This books teaches you the trade secrets for building all the products in this web site.
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