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Cover for Patent Office · Patents for Inventions (Bok) (2022)
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Patents for Inventions
Patent Office
Cover for Patent Office · Chronological Index of Patents Applied for and Patents Granted [Afterw. ] of Patentees and Applicants for Patents of Invention, by B. Woodcroft (Bok) (2022)
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Chronological Index of Patents A...
Patent Office
Cover for Patent Office · Patents for Inventions (Bok) (2022)
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Patents for Inventions
Patent Office
Cover for Patent Office · Abridgments of Specifications Relating to Milking, Churning and Cheese-Making (Bok) (2022)
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Abridgments of Specifications Re...
Patent Office