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Subject-matter index of patents applied for and patents granted for the Year 1871
This book has been considered by academicians and scholars of great significance and value to literature. This forms a part of the knowledge base for future generations. So that the book is never forgotten we have represented this book in a print format as the same form as it was originally first published. Hence any marks or annotations seen are left intentionally to preserve its true nature.
430 pages, Paperback
Published June 1, 2020
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