[ Projectors in the nature of slide projectors for use in teaching; push buttons specifically adapted for use with electric door bells; computer peripheral devices; solar batteries; data processing equipment, namely, couplers; battery chargers; blank USB flash drives; ] batteries, electric [ ; pince-nez; bags adapted for laptops; sunglasses; electrical plugs; electrical sockets; contacts in the nature of electric connections, namely, electric contacts; headphones; sound transmitting apparatus...