Telescopically tiltable and expandable folding ruler, has strap that is present within pipes, with one end connected with pipe by smallest extent, and device provided for passage of strap under window, where strap is rolled up on coil
DE102006046923A1
Tape measure
DE102006039752B3
Telescopic folding rule, has observation windows arranged next to each other on right and left to symmetry axis such that windows of smaller pipe are invisible or covered by windows of larger pipe
DE10315705A1
Automatic control of passive safety system in motor vehicle, involves automatically analyzing position of motor vehicle, and activating airbags of motor vehicle when determined inclination angle of motor vehicle exceeds predetermined value