Piece
Road research: DSIR 12
Catalogue reference: PRO 57/3754
Date: 1978-1980
Road research: DSIR 12
Item
Catalogue reference: DSIR 12/330/113
This record is about the The efficiency of concrete mixers dating from 1949 Nov in the series Department of Scientific and Industrial Research: Road Research Board. It is held at The National Archives, Kew.
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The efficiency of concrete mixers
DSIR 12
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The efficiency of concrete mixers
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