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Description: | 'Double-insulated system' and 'Wolf all-insulated system', slide with diagrams showing earthing of electric drills, from a case-study presentation by G. M. Wolfe on Wolf Electric Tools Ltd. at conference on 'The Management of Design for European Markets', organised by the Design Council, the Council of Engineering Institutions and the Society of Industrial Artists and Designers in 1972. | Subjects: | illustrations diagrams | Source: | Vads | Identifier: | http://www.vads.ac.uk/large.php?uid=5828... | Go to resource |
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