Record

Ref No	MS 3147/3/541/66a
Title	Letter. Henry Penneck M. D. (Penzance) to James Watt Jr. (Soho). 26 Dec. 1822.
Level	Item
Date	26 Dec 1822
Description	Enclosing (b) and (c) below. Docketed “Has taken a patent for a rotative motion obtained by the use of ratchet wheels. Offers a share in it and to communicate other improvements.”
Access Status	Open

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