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  Marcel used heating rods to do hair. Heating rods were also called long tongs.
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  Simon Monroes hair straightener invention included metal teeth.
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  Issac K. Shero invented two heated metals pressed against each other to straighten the hair.
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  Females used clothing irons to iron hair flat.
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  Hot plates set inside plastic
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  Ceramic plates, but they are similar to the older ones
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  They are ceramic which lock in moisture and helps from frying the hair
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  Lady Jennifer Bell Schofield created the flat iron that we see today in stores