Writing instrument, particularly ball-pen, has unit for detecting and storing time during which writing instrument is held in hand and another unit for detecting and storing time during which writing portion is pressed on surface
DE102012003560A1
Waistbelt has band and buckle, which is designed such that end of band is fixed if strain of band relative to buckle does not exceed predetermined parameter and buckle slides end of band relative to buckle if strain exceeds parameter
DE102012003172A1
Belt has strap whose other end is attached on buckle, such that pin is resisted against spring to detach strap from buckle or displace the strap, if tensioning force of strap crosses predetermined limit
DE102011103183A1
Device for researching geo-pathogenic zones, has two strips, and high-frequency generators arranged at ends of respective strips, where outputs of generators are connected with mixer by helical spacers
DE102011012549A1
Method for automatic identification of person during authorization in e.g. organization, involves introducing authorization for additional assessment of parameters which are characteristic for face of person
