How to get a patent; a complete compendium of useful information for inventors (1896)
Wedderburn (John) and company, Washington, D.C. [from old catalog] · Washington, D.C., J. Wedderburn & co. · leaf 60
nted for fifteen years. Cost, $75.00. Appli-cation must be made before the invention has been fullydescribed in any publication, or so openly used that others maywork the invention. Publication by foreign patent authorities,or the exhibition of the invention, will not prevent the grant ofpatent if… … 60 JOHN WEDDERBURN & CO, REFERENCES. The national reputati n which this firm enjoys would seemto make the presentation of testimonials unnecessary; but wewould call the attention of those who have, as yet, had no deal-ings with us to the warm endorsements of our business methodsprinted below.…
Patents
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