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Patents for inventions : abridgments of specifications. Class 35 Dynamo Electric generators and motors including Frictional and Influence machines Magnets and the like : period AD. 1916 20 100 001 155 800 period AD. 1921 25 155 801 244 800 period AD. 1926 30 244 801 340 200. Complete in three volumes A. D. A. D. A. D.
- Offered by
- MW Books Ltd.
- Price
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$234.00