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Title: hand signals for lifting operations accident prevention service [Go to resource]
Description: Diagrams of hand signals. Hand signals for lifting operations, accident prevention service. 1972. British Railways (BRB). License: http://creativecommons.org/licenses/by-nc-sa/2.5/ Subjects: poster Temporal: 1972 Source: Science Museum Identifier: 1998-11643 Go to resource More Like this...
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