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Surgeless combustion air blower
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Patent number 4,708,593
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Issue date Nov 24, 1987
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Robinson Industries, Inc.
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H. Daniel Banyay
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F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
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Axial fan turning diffuser
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Patent number 4,318,693
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Issue date Mar 9, 1982
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Robinson Industries, Inc.
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Howard L. Gutzwiller
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F27 - FURNACES KILNS OVENS RETORTS
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Cover plates for tank heads
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Patent number 4,295,789
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Issue date Oct 20, 1981
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Robinson Industries, Inc.
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Howard L. Gutzwiller
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F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
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