Patent classifications
H
ELECTRICITY
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H03
ELECTRONIC CIRCUITRY
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H03H
IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
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9/00
Networks comprising electromechanical or electro-acoustic elements; Electromechanical resonators
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H03H9/02007
of bulk acoustic wave devices
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H03H9/02015
Characteristics of piezoelectric layers, e.g. cutting angles
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H03H9/02039
consisting of a material from the crystal group 32, e.g. langasite, langatate, langanite
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