Specification of John Arnold - Timekeepers - 1775, No. 1113

Catalogue no: 1007
Dewey No: Subject(s): Patents
Author(s): John Arnold
Total pages: 3 Illustrations: Yes, 1 Language(s): English Publication date: 1775
Editor: Publisher: The Great Seal Patent Office
Dimensions: 290mm x 200mm Condition: Blue paper covers fragile
Related titles: John Arnold & Son by Vaudrey Mercer, pp65-6 Related library records:
Notes:
Patent relating to "A New Pendulum Spring for Timekeepers, and the Method of Compensating the Effect of Heat and Cold on the Same". A reprint of 1856
Room location: Library Cabinet: Q Shelf: 4
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