Size:16" x 20" | Color:Vintage Paper Laboratory Centrifuge patent art poster by Patent Earth™. Published in 1955, this patent was filed by Robert R Allen and Robert J Novotny. These patent prints make excellent wall art in any setting! Printed on thick, durable heavy stock matte paper. Printed On Demand. Most U.S. orders ship within 3 business days via standard shipping and arrive within 6 to 8 business days.
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