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3815623
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Issue date Jun 11, 1974
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F27 - FURNACES KILNS OVENS RETORTS
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3789433
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Patent number 3,789,433
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E03 - WATER SUPPLY SEWERAGE
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3010470
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Issue date Nov 28, 1961
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2991798
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Patent number 2,991,798
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Issue date Jul 11, 1961
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F28 - HEAT EXCHANGE IN GENERAL
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2856950
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Patent number 2,856,950
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B67 - OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS LIQUID...
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F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
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2821993
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B67 - OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS LIQUID...
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2329742
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B60 - VEHICLES IN GENERAL
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2068363
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2061397
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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2055954
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Patent number 2,055,954
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1480784
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E03 - WATER SUPPLY SEWERAGE
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1365644
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989113
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