IC 009. US 021 023 026 036 038. G & S: Electric or electronic control or regulating apparatus and instruments, namely, controls for regulating or controlling electric current in heat pumps; power electronic devices, apparatuses and instruments for switching, converting, regulating and controlling electricity
IC 011. US 013 021 023 031 034. G & S: installations for use of energy, storage of energy and conversion of energy, namely heating devices in the nature of heat pumps, heat pumps, evaporators for heat pumps, liquefiers for heat pumps
IC 037. US 100 103 106. G & S: maintenance of technical installations for use of energy in the nature of installations for the purpose of storage of energy and conversion of energy, namely heat pumps, storages and energy converters
IC 042. US 100 101. G & S: development of technical installations for use of energy, in the nature of installations for the purpose of storage of energy and conversion of energy, namely heat pumps, energy storages and energy converters
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