Word: buzzzzzzz
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...Evelyn Watson of Buffalo, which permits blind people to weigh by ear such things as powder for fuses, mica for radio installations, buttons, screws. The machine is set to indicate a certain weight, signals dit-dah when the needle is under the mark, dah-dit when it is over, buzzzzzzz when it is "on the beam." >Trico Products Corp. of Buffalo has developed a Braille-type micrometer for checking precision instruments, by touch, to one-ten-thousandth of an inch...
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