Effective
38 ship citations (1 free) in 14 resources
Effective (I) (AM-92)
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Effective (II) (T-AGOS-21)
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Effective (research vessel; built 1993; USA; 2655 dwt; IMO: 8923997)
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Effective (Sunderland, 1878, Steam; ON: 68973)
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Effective, USS (T-AGOS 21)
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