Patent Earth

First Stage Regulator Poster Print Scuba Diver Gift Dive Instructor Patent Print

First Stage Regulator patent art poster by Patent Earth™. Published in 1974, this patent was filed by R Christianson. 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.