520 mm artillery 1970-01-01
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560 mm artillery 1970-01-01
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600 mm artillery 1970-01-01
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630 mm artillery 1970-01-01
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75 mm artillery 1970-01-01
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76 mm artillery 1970-01-01
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77 mm artillery 1970-01-01
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800 mm artillery 1970-01-01
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Audio bus 1970-01-01
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MIL-CD 1970-01-01
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MP3 Surround 1970-01-01
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MP3 SX 1970-01-01
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Space guns 1970-01-01
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Superguns 1970-01-01
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Dover Strait coastal guns 1970-01-01
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Dulle Griet 1970-01-01
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Jahan Kosha Cannon 1970-01-01
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Jörundur Svavarsson 1970-01-01
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Kilinailau Trench 1970-01-01
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Legacy Audio 1970-01-01
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