To reduce the number of components and save a space of an attachment mechanism, in an attachment structure of a front panel and a front panel cover in a waveform display device.
In the attachment structure of a front panel and a front panel cover in a waveform display device, the front panel cover is channel-shaped, has positioning projections formed in both front end parts thereof, has positioning pin receiving parts formed in both corner parts thereof, and has a plurality of fixing pawl parts formed in an outer edge part thereof, and the front panel has positioning hole parts formed in positions corresponding to the projections, has positioning pins formed in positions corresponding to the pin receiving parts, and has fixing grooves part formed in positions corresponding to the pawl parts.
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