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Report on the British Indian Army, 1943
Piece
Catalogue reference: AVIA 13/147
This record is about the Lubricating oils tester: patent application by W. Helmore and A.A. Griffith dating from 1934-1935 in the series Air Ministry and successors: Royal Aircraft Establishment (from 1988, Royal Aerospace.... It is held at The National Archives, Kew.
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Lubricating oils tester: patent application by W. Helmore and A.A. Griffith
AVIA 13
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Lubricating oils tester: patent application by W. Helmore and A.A. Griffith
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