How to Make Money by Invention (Classic Reprint)

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Excerpt from How to Make Money by Invention He has already put his head to the plow, and must not look back. The field is before him, which, by cultivation may yield good returns; but although he may have sown good seed, care will be requisite for bringing it to perfection. 'the author of these pages makes no other pretension than that of attempting to give to his readers the' best information regarding the subjects written on that his experience dictates. He presents no nos trum to make all patents profitable and has no ...

How to Make Money by Invention (Classic Reprint) 2018, Forgotten Books

ISBN-13: 9781330155905

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