INVISIBLE RAY
DEFYING THE BURGLAR INVENTION FOR GIVING ALARM UNSEEN SHADOW. (United Press Association—By Electric Telegraph Copyright.) Received 2 n.m. to-day. NEW'YORK, Feb. 14. The Westinghouse Electric and Manufacturing Company displayed the newest . invention —an ultraviolet ray. harmless an d invisible, which will protect vaults or harbours in war time. JeweFlers can place the ray® at various angles l in their strong-rooms, so that an intruder interrupting _ them will cast an unseen shadow which will ring an alarm or (release a gas barrage'-
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Bibliographic details
Hawera Star, Volume XLIX, 15 February 1930, Page 9
Word Count
83INVISIBLE RAY Hawera Star, Volume XLIX, 15 February 1930, Page 9
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