Color comparison device having a color sample-bonding wheel whic

Details Color comparison device having a color sample-bonding wheel whic Color comparison device having a color sample-bonding wheel whic

1989-02-28

1991-01-01

Evans, F. L.

Optics: measuring and testing

By shade or color

With reflective multicolor chart or standard

356 42, G01J 352

Patent

active

049813617

ABSTRACT:
A color comparison device uses a rotatable color sample-bonding wheel to hold a sticker containing a plurality of color shades for matching with a color of a test portion of a test stick as the wheel rotates. At least one recess is formed in a part of the sticker bonding surface of the wheel to permit access to an edge of the sticker to facilitate its removal from the wheel.

REFERENCES:
patent: 3009388 (1961-11-01), Polanyi
patent: 4682891 (1987-07-01), de Macario et al.
patent: 4871258 (1989-10-01), Herpichboehm et al.

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