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Solar distillation apparatus
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Patent number 4,487,659
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Issue date Dec 11, 1984
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North American Utility Construction Corp.
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Virgil Stark
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F24 - HEATING RANGES VENTILATING
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Solar energy collection still
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Patent number 4,312,709
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Issue date Jan 26, 1982
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North American Utility Construction Corp.
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Virgil Stark
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F24 - HEATING RANGES VENTILATING
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Solar distillation apparatus
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Patent number 4,270,981
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Issue date Jun 2, 1981
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North American Utility Construction Corp.
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Virgil Stark
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C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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Solar energy collection
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Patent number 4,249,516
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Issue date Feb 10, 1981
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North American Utility Construction Corp.
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Virgil Stark
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F24 - HEATING RANGES VENTILATING
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