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Patents and How to Get One: A Practical Handbook ⠃⠗⠋ braille edition
Grade 1 — uncontracted, letter-for-letter. Translated on this server by our own braille engine (BRF — Braille Ready Format, Library of Congress fdd000551). View Grade 2 instead.
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147,023 braille cells · 154 embossed pages at 40×25 · 6,454 unrepresentable characters omitted
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