Two Michigan inventors received a patent in 1986 for a face mask with beaded bars that make the mask hard to grasp. Modeled after the beads on a baby’s crib, the design was said to be child’s play.
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Two Michigan inventors received a patent in 1986 for a face mask with beaded bars that make the mask hard to grasp. Modeled after the beads on a baby’s crib, the design was said to be child’s play.
No posts