Laminated piezoelectric keyboard

H - Electricity – 03 – K

Patent

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340/175

H03K 17/96 (2006.01)

Patent

CA 1254971

ABSTRACT OF THE DISCLOSURE The keyboard comprises piezoelectric crystal elements arranged between laminates provided with con- ducting strips. A voltage is generated when pressure is applied to the elements. The keyboard is tensionless in its rest state and contains no unwanted air spaces.

514411

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