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Class Information
Number: 332/169
Name: Modulators > Amplitude modulator > Suppressed carrier double sideband type > Including electron discharge device
Description: Subject matter utilizing a device which has electrical current flow between two spaced electrodes in a gas, vapor or vacuum.

Patents under this class:

Patent Number Title Of Patent Date Issued
7119629 Synchronized controlled oscillation modulator Oct. 10, 2006
4220830 Hearing aid with modulated suppressed carrier signal Sep. 2, 1980
3995236 Double sideband modulator Nov. 30, 1976

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