The inventor's universal educator. An educational cyclopaedia and guide for inventors, patentees, manufacturers, mechanics, and all others connected directly or indirectly with patents (1919)
solver should carefully study what has been presented and rememberthat minds both scientific and otherwise have followed this phantom for centuries and although such phantomappears to be active enough to have sufficient motion to keep beyond the reach of mans ingenuity and thereby infact remain, as…
Patents · Mechanical movements
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