#USPTO: 01.15.18 - Raindrops (more than a single drop), Teardrops (more than a single drop), More than one drop including teardrops or raindrops, multiple drops (rain, tear, etc.) #USPTO: 15.01.04 - Generators, Filters, oil (automotive), Filters, air cleaner (automotive), Engines, turbine, Engines, steam, Engines, combustion, Diesel engines, Carburetors, vehicle, Boat motors, outboards, Alternators, Internal combustion engines, Motors (machinery), Motors, outboard (boat), Valves, automobile engine, Air cleaner filters, automotive #Mehr als zwei Kreise, ineinander, Spiralen #Dünne Linien #Zylinder #USPTO: 26.17.01 - Straight line(s), band(s) or bar(s), Lines, straight, Bars, straight, Bands, straight #USPTO: 26.17.03 - Lines, dotted, Dotted line(s) #USPTO: 26.17.04 - Vertical line(s), band(s) or bar(s), Lines, vertical, Bars, vertical, Bands, vertical #USPTO: 26.17.05 - Lines, horizontal, Horizontal line(s), band(s) or bar(s), Bars, horizontal, Bands, horizontal