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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H03H9/02535
of surface acoustic wave devices
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H03H9/02543
Characteristics of substrate, e.g. cutting angles
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H03H9/02574
of combined substrates, multilayered substrates, piezoelectrical layers on not-piezoelectrical substrate
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