Earphones; Microscopes; Periscopes; Photometers; Refractometers; Telescopes; Computer keyboards; Data cables; Fitted plastic films known as skins for covering and providing a scratch proof barrier or protection for electronic devices, namely, MP3 players, mobile telephones, smart telephones, digital cameras, global positioning systems and personal digital assistants; Magnifying glasses; Measuring spoons; Mouse pads; Optical lamps; Optical lenses; PC tablet mounts; Rechargeable electric batter...