US 333,444,000 B1

URI: https://gptkb.org/entity/US_333%2C444%2C000_B1
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gptkbp:instanceOf patent
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https://www.w3.org/2000/01/rdf-schema#label US 333,444,000 B1
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gptkbp:issuedBy gptkb:United_States_Patent_and_Trademark_Office
gptkbp:patentType utility
gptkbp:status active