Drivers log device

Details Drivers log device Drivers log device

1975-06-11

1976-08-17

Phillips, Charles E.

Geometrical instruments

Area integrators

Electrical

33 75R, B43L 700, G01B 310

Patent

active

039745686

ABSTRACT:
A device for assisting a truck driver in rapidly computing work hours from a log book, comprising a thin, flat, elongated plate of transparent material having a pair of indexing members movably mounted thereon for alignment with certain figures on a driver's daily time record.

REFERENCES:
patent: 2005362 (1935-06-01), Clausen
patent: 2456676 (1948-12-01), Chowns
patent: 3144716 (1964-08-01), Cich
patent: 3218720 (1965-11-01), Curry

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