POST OFFICE ENGINEERING DEPARTMENT — Technical Pamphlets for Workmen. D 20. Superposed Circuits. Transformers. Bridging Coils and Retardation Coils. NEAR FINE COPY IN ORIGINAL WRAPPERS
HMSO, 1919. 8vo., with illustrations and diagrams in the text; original blue wrappers, wire-stitched as issued, a near fine copy. VERY SCARCE IN THIS CONDITION.
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Numero libro:
29467
£15.00 (€17.96 | $19.91 | ¥3,183)