Portable Pyrometer and accessories used to take accurate temperature measurements of roll surfaces and platens in the Rubber Compounding and Processing Laboratory at the Naval Air Experimental Station. This photograph was included in a 1949 Naval Air Experimental Station report on compounding rubber.
United States. Navy, and Naval Air Experimental Station. “Portable Pyrometer and Accessories,” circa 1949. Photographs from the Papers of J. Hartley Bowen, Box 1. Science History Institute. Philadelphia. https://digital.sciencehistory.org/works/pk02c977h.
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