IC 009. US 021 023 026 036 038. G & S: Devices, assemblies, and/or components for transmitting electrical and optical signals and/or energy as well as for data transmission between units which are movable in relation to one another comprised of electrical couplings, electric current collectors, rotary couplings, rotary joints, and rotary joint brushes, all sold together as one unit
IC 042. US 100 101. G & S: Design and development of computer hardware and software; technological services and designer services, namely, engineering services in the field of rotary couplings, current collectors, electrical couplings, rotary joints, and collectors and parts thereof; industrial research services in the field of rotary couplings, electrical couplings, rotary joints, and collectors and parts thereof; engineering services, namely, analysis of rotary couplings, electrical couplings, rotary joints, and collectors and parts thereof; engineering services, namely, design and development of devices, assemblies, and/or components for transmitting electrical and optical signals and/or energy and for data transmission between units which are movable in relation to one another, and between rotary joints, and collectors
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