Remove 6 letters from this s...
Remove 6 letters from this sequence (HOIGEHALIGEHETOS) to reveal a familiar English word.Correct answers: 65
The first user who solved this task is Erkain Mahajanian.
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Dental chair patentIn 1848, the first U.S. patent for a surgical or dental operating-chair with adjustable elevation and tilt of the seat and back was issued to M.W. Hanchett of Syracuse, N.Y. (No. 5711). The chair included a footrest with adjustable elevation.[Image: top - full view of seat and foot rest; bottom - detail of tilt cogs beneath seat.] |