88794639
Feb 12, 2020
optical communication devices in the nature of light activated data transmission devices; optical communication devices in the nature of self-powered communication devices; optical communication devices in the nature of light modulating communication devices; photovoltaic-powered light modulating communication devices using retroreflectors; optical communication devices, namely, light activated devices for the transmission of data; optical communication devices consisting of electronic and optical communications instruments and components, namely, optical transceivers; electronic and optical communications instruments and components, namely, optical transmitters, optical receivers, optical transceivers, and optical data links
Electrical and Scientific Apparatus