Step and repeat apparatus

Details Step and repeat apparatus Step and repeat apparatus

1990-06-26

1991-08-27

Haroian, Harry N.

Geometrical instruments

Gauge

Collocating

G01D 2100

Patent

active

050421654

ABSTRACT:
The invention comprises a step and repeat board having an upper surface with oriented peaks and valleys, the valleys intersecting one another to form a texture or finish constituting a level hair-line cell structure wherein the valleys preferably have an average depth on the order of 0.003 to 0.004 inches.

REFERENCES:
patent: 2983049 (1961-05-01), Andrisani
patent: 3922087 (1975-11-01), Diccou
patent: 4294539 (1981-10-01), Spehrley

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