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1994-10-14
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1988-06-29
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1989-09-15
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1987-06-01
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1989-06-12
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1988-01-07
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1988-06-23
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1987-05-21
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1990-09-15
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1986-12-16
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1984-11-07
Earth anchors
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1988-10-26
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