Instrument and method for comparing numeric indicia

Signals and indicators – Indicators – Operator movable

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116321, G09F 940

Patent

active

053356233

ABSTRACT:
An instrument and method for comparing numeric indicia. The instrument is configured for receiving at least two moveable members and has first numeric indicia positioned for cooperation with corresponding second numeric indicia on each member. Upon selective manipulation of each member, the first and second indicia are aligned such that the indicia may be compared by a user.

REFERENCES:
patent: 1602479 (1926-10-01), Bulmer et al.
patent: 2746346 (1956-05-01), Gaire
patent: 2871582 (1959-02-01), Frank
patent: 3397838 (1968-08-01), Ostrander et al.
patent: 4678893 (1987-07-01), Ruble
patent: 4749846 (1988-06-01), Deaver

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