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Title: Trico-Folberth semaphore type motor vehicle direction indica [Go to resource]
Description: Trico-Folberth semaphore type motor vehicle direction indicator, c. 1952. Patent number 671 544, registered design number 863 240 License: http://creativecommons.org/licenses/by-nc-sa/2.5/ Temporal: c.1952 Source: Science Museum Identifier: 1986-35 Go to resource More Like this...
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