204058 ⎘
Facilitation of operation; Human engineering on planes with different or alterable inclination, e.g. convex plane
Sub-classes:Operating device
#2Support mechanism and electronic device using the same
#3KEYBOARD ASSEMBLY
#4Ergonomic keyboard
#5Angular keyboard for a handheld mobile communication device
#6Angular keyboard for a handheld mobile communication device
#7Waterproof structure of push button switch
#8Keyboard assembly
#9Portable telephone and method of manufacturing the same
#10Keyboards
#11Ergonomic keyboard