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Unitary pump packing
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Patent number 4,209,285
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Issue date Jun 24, 1980
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The Richardson Company
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Dennis N. Jasinski
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F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
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Vented battery cap
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Patent number 4,186,247
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Issue date Jan 29, 1980
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The Richardson Company
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Verlin A. Mocas
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H01 - BASIC ELECTRIC ELEMENTS
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Vented battery cap
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Patent number 4,098,963
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Issue date Jul 4, 1978
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The Richardson Company
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Verlin A. Mocas
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H01 - BASIC ELECTRIC ELEMENTS
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Acid bright zinc plating
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Patent number 4,089,755
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Issue date May 16, 1978
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The Richardson Company
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Carl P. Steinecker
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C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
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Corrosion inhibitors
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Patent number 4,089,789
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Issue date May 16, 1978
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The Richardson Company
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Thaddeus M. Muzyczko
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C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
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Phonographic record molding composition
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Patent number 4,088,617
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Issue date May 9, 1978
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The Richardson Company
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Dale Skalla
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C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
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