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Commissioners of Patents. Author: Commissioners of Patents. paperback, rubbed at head and tail of spine, a tightly bound copy, text clean and unmarked, 46 + [viii] pp. Book ID: 214338.
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Hardback, octavo, a very good tightly bound copy with a clean and unmarked text and in a pictorial dust jacket which has a short closed tear at the head of the front panel, 272pp. Book Condition Report.
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