Test document for scanners

- IBM
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Description

FIG. 1 is a view, in color, of a test document showing our new design;

FIG. 2 is a view, shaded for black and white, of the design shown in FIG. 1; and,

FIG. 3 is a view of an alternative embodiment of the design shown in FIG. 2.

The omitted views are flat, plain with no substantial thickness.

Referenced Cited
U.S. Patent Documents
D217576 May 1970 Couve
D217577 May 1970 Couve
D218712 September 1970 Couve
D363031 October 10, 1995 Bruegmann et al.
3411007 November 1968 Thompson
4193687 March 18, 1980 Reekstin et al.
4727014 February 23, 1988 Horn et al.
4765744 August 23, 1988 Kobayashi
Patent History
Patent number: D399764
Type: Grant
Filed: May 23, 1995
Date of Patent: Oct 20, 1998
Assignee: International Business Machines Corporation (Armonk, NY)
Inventors: Winfried Bruegmann (Schoenaich), Werner Ruppert (Schoenaich)
Primary Examiner: Antoine Duval Davis
Application Number: 0/39,799
Classifications
Current U.S. Class: Measuring, Regulating Or Indicating Instrument, Or Casing (D10/46)
International Classification: 1004;