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Publication date
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Publication of JPS4832389B1publicationCriticalpatent/JPS4832389B1/ja
G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
G07C5/00—Registering or indicating the working of vehicles
G07C5/02—Registering or indicating driving, working, idle, or waiting time only
G07C5/06—Registering or indicating driving, working, idle, or waiting time only in graphical form
G—PHYSICS
G01—MEASURING; TESTING
G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
G01P1/00—Details of instruments
G01P1/12—Recording devices
G01P1/122—Speed recorders
Landscapes
Physics & Mathematics
(AREA)
General Physics & Mathematics
(AREA)
Time Recorders, Dirve Recorders, Access Control
(AREA)
Recording Measured Values
(AREA)
Rotary Switch, Piano Key Switch, And Lever Switch
(AREA)
Improvements in or relating to recording and indicating instruments, more particularly for recording time and speed conditions of travel of motor vehicles