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Smuggling gangs and coastal policing in 19th-century England
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Catalogue reference: ADM 259/219
This record is about the Unbalance effects in modulators dating from 1954 in the series Admiralty: Anti-Submarine Experimental Establishment, later Underwater Detection.... It is held at The National Archives, Kew.
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Unbalance effects in modulators
ADM 259
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Unbalance effects in modulators
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