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Title: four lever frame [Go to resource]
Description: Four-lever working frame for electro-pneumatic operation with mechanical interlocking, as used from 1900, presented and modified by Westinghouse Brake & Signal Co. Ltd. License: http://creativecommons.org/licenses/by-nc-sa/2.5/ Subjects: lever frame Temporal: 1900 Source: Science Museum Identifier: 1948-254 Go to resource More Like this...
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