DEVICE FOR DETERMINING OPTICAL TIME OF PRODUCT MAINTENANCE - GRISHIN VLADIMIR D,SU; LYSAK VLADIMIR V,SU; TIMOFEEV ALEKSANDR N,SU (1992)
Keywords: ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDEDFOR ELSEWHERE; CHECKING-DEVICES; GENERATING RANDOM NUMBERS; PHYSICS; REGISTERING OR INDICATING THE WORKING OF MACHINES; TIME OR ATTENDANCE REGISTERS; VOTING OR LOTTERY APPARATUS