Studies of display symbol legibility. VI. Leroy and Courtney smbols. ESD-TR-65-136. TM-4212. [electronic resource]

By: Contributor(s): Producer: 19660724Description: 1-29 p. digitalSubject(s): In: Technical documentary report. United States. Air Force. Systems Command. Electronic Systems Division p. 1-29
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Publication Type: Journal Article

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