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	Search results for invention    results 1-4 of 4 item(s)  page 1 of 1 : ( <<  1  >> ) :: previous : next select all : clear all : add to favorites 1. Carrie Rodgers standing near electric car, 1918 2. Dr. W. Randolph Lovelace with his invention, the high altitude oxygen mask, 1938 3. Dr. William Randolph Lovelace demonstrating his oxygen mask invention, 1938 4. Iron Chink fish processor, Seattle, ca. 1909 select all : clear all : add to favorites results 1-4 of 4 item(s)  page 1 of 1 : ( <<  1  >> ) :: previous : next
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