Conversion calculator
Description
FIG. 1 is a front elevational view of a conversion calculator showing my new design;
FIG. 2 is a bottom plan view;
FIG. 3 is a front elevational view of a conversion calculator showing a modified form of my new design;
FIG. 4 is a bottom plan view thereof; and
FIG. 5 is a right side elevational view thereof.
The unseen sides and edges of either embodiment of the calculator are unornamented.
The backs of both embodiments are absolutely plain, except for printed matter, the top and bottom plan views of both embodiments are identical, as are the edge views of either edge, except for the overlap running the length of the calculator, as shown clearly in FIGS. 2 and 4.
Referenced Cited
U.S. Patent Documents
D231796 | June 1974 | Schwarz et al. |
D234372 | February 1975 | Baldwin |
Patent History
Patent number: D277871
Type: Grant
Filed: Sep 30, 1982
Date of Patent: Mar 5, 1985
Inventor: James E. Bubash (St. Louis, MO)
Primary Examiner: Louis S. Zarfas
Law Firm: Polster, Polster and Lucchesi
Application Number: 6/429,562
Type: Grant
Filed: Sep 30, 1982
Date of Patent: Mar 5, 1985
Inventor: James E. Bubash (St. Louis, MO)
Primary Examiner: Louis S. Zarfas
Law Firm: Polster, Polster and Lucchesi
Application Number: 6/429,562
Classifications
Current U.S. Class:
Slide Rule Type (D18/9)