why were metal detectors first used?answer in passage.
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Metal detectors are useful for finding metal inclusions hidden within objects, or metal objects buried underground. ... The first industrial metal detectors were developed in the 1960s and were used extensively for mineral prospecting and other industrial applications.
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5
Answer:
Metal detectors are useful for finding metal inclusions hidden within objects, or metal objects buried underground. ... The first industrial metal detectors were developed in the 1960s and were used extensively for mineral prospecting and other industrial applications.
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