Steph Posted August 23, 2018 Report Share Posted August 23, 2018 A friend of a friend has a complete set of U.S. patent books from 1912 to somewhere in the 70's. He's moving and is reluctantly parting with them for about $15 apiece. If there's any particular book which you want for patents on marble machines or anything else, let me know soon so I can get you in contact before the movers arrive. Link to comment Share on other sites More sharing options...
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