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Spring band clamp
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Patent number 4,910,832
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Issue date Mar 27, 1990
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Parker-Hannifin Corporation
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Erwin L. Schaub
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Roller back wiper
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Patent number 4,722,112
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Issue date Feb 2, 1988
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Parker-Hannifin Corporation
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Erwin L. Schaub
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B60 - VEHICLES IN GENERAL
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Dual stage air compressor
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Patent number 4,558,994
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Issue date Dec 17, 1985
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Parker-Hannifin Corporation
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Frank J. Viola
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F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
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Pipe restraint device
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Patent number 4,492,393
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Issue date Jan 8, 1985
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Parker Hannifin Corporation
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Erwin L. Schaub
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...