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Title: Oertling single pan, substitution balance prototype, 1949. [Go to resource]
Description: Oertling single pan, substitution balance prototype, 1949. The Constant Mark II, exhibited at the 1951 Festival of Britain. License: http://creativecommons.org/licenses/by-nc-sa/2.5/ Subjects: balance Temporal: 1949 Source: Science Museum Creator: L Oertling Limited Identifier: 1978-472 Go to resource More Like this...
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