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3M Directional Heat Scanner

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Firefighting396 of 432Badges of America's Heroesantique fire extinquisher
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Posted 7 years ago


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This is an ad from 1975 or '76 for a 3M Directional Heat Scanner. It was used by the fire department for finding a heat source. The gentleman on the left in the upper left photo and on the left in the bottom far right photo is my grandfather.

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