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American Level Patents
- Illustrated and Explained
Engelsk Paperback
American Level Patents
- Illustrated and Explained
Engelsk Paperback

280 kr
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Om denne bog
In this companion to American Levels and Their Makers, Vol. I, the author presents that great rarity a book on patents that both illustrates the patents (in a size large enough to be useful) and explains them. Two hundred and ten level patents are pictured and explained here, with explanations keyed to the patent drawings. They illustrate the major and continuing contributions by L.L. Davis, Justus Traut, the Stratton Bros., and L.S. Starrett, among others. To aid in identification, each patent is triply indexed: by date, patentee, and category (e.g., inclinometer, sighting level, adjustment mechanism, etc.). In addition, the book provides a brief history of the men who obtained the patents, information on whether, when, and how the patents were used, the progression of improvements in patent concepts over time, and information that may be useful in identifying mystery levels. This volume, relating patents to real tools, will prove an invaluable reference for tool collectors and dealers, as well as for students of industrial technology.
Product detaljer
Sprog:
Engelsk
Sider:
244
ISBN-13:
9781879335929
Indbinding:
Paperback
Udgave:
ISBN-10:
1879335921
Udg. Dato:
1 jun 2000
Længde:
15mm
Bredde:
178mm
Højde:
254mm
Forlag:
Astragal Press
Oplagsdato:
1 jun 2000
Forfatter(e):
Kategori sammenhænge