70154337
9781015945418
Dircks, Henry is the author of 'Perpetual Motion; Comprising a History of the Efforts to Attain Self-Motive Mechanism, with a Classified, Illustrated, Collection and Explanation of the Devices Whereby It Has Been Sought and Why They Failed, and Comprising Also a Revision and Re-arrangem', published 2022 under ISBN 9781015945418 and ISBN 1015945414.
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