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DE3806441A1
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Arrangement for converting solar energy into heat
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ES8609088A3
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Improvements in facilities to transform solar energy into heat
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JPS5946453A
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Device for converting solar energy into heat
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CA1203133A
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Solar collector and absorber
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EP0054729A1
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Apparatus for transforming solar energy into heat
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EP0025212A1
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Solar collector element
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DE2633545B1
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Crane crab with slewing jib - has portion of telescopic jib section curving in opposite direction to remainder
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DE2356904A1
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Slewing rail-mounted crane - has telescopic jib retracting to less than half full length
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