The NEL type III deep-sea camera Shipek, C. J. creator United States. Navy. Electronics Laboratory. contributor text book San Diego, Calif U.S. Navy Electronics Laboratory [1957] 1957
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ENG Cover title. "13 March 1957." Cameras Underwater photography TK7855 .U5 no. 768 NEL report, 768 Research and developmental report (U.S. Navy Electronics Laboratory), 768 https://www.biodiversitylibrary.org/bibliography/47839 20102029 10.5962/bhl.title.47839 NSL