Nomograph

Description

FIG. 1 is a front elevational view of a nomograph showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a right side elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a left side elevational view thereof; and

FIG. 6 is a bottom plan view thereof.

Referenced Cited
U.S. Patent Documents
1074439 September 1913 Kincaid
1637222 July 1927 Hempleman
3372869 March 1968 Motte et al.
Foreign Patent Documents
1194081 November 1959 FRX
Patent History
Patent number: D284088
Type: Grant
Filed: Jul 12, 1983
Date of Patent: Jun 3, 1986
Assignee: The Purdue Frederick Company (New York, NY)
Inventors: Erwig Pinter (Limburg/Lahn), Michael Oellerich (Hanover), Gerhard W. Sybrecht (Hanover)
Primary Examiner: Louis S. Zarfas
Law Firm: Steinberg & Raskin
Application Number: 6/513,037
Classifications
Current U.S. Class: Slide Rule Type (D18/9)