USD207794S - Ruler used in mathematics - Google Patents
Ruler used in mathematics Download PDFInfo
- Publication number
- USD207794S USD207794S US D207794 S USD207794 S US D207794S
- Authority
- US
- United States
- Prior art keywords
- mathematics
- ruler used
- ruler
- united states
- view
- Prior art date
Links
Images
Description
United States Patent 0 RULER USED IN MATHEMATICS Don C. Cherrington, 862 Birdhaven Court, Lafayette, Calif. 94549 Filed May 17, 1966, Ser. No. 2,337
Term of patent 14 years (Cl. D52-6) kli'lll FIG. 1 is a plan view showing my ruler used in mathematics. The bottom plan view is similar in outline and if made of transparent material the lettering and symbols are shown reversed.
FIG. 2 is a side elevation thereof.
FIG. 3 is an end elevation thereof.
I claim:
The ornamental design for a ruler used in mathematics, as shown and described.
D. 125,449 D. 195,225 D. 200,595 1,745,188 1,899,318
Des. 207,794
Patented May 30, 1967 FIG-3 FIG. 2
References Cited UNITED STATES PATENTS WALLACE R. BURKE, Primary Examiner.
J. COOPERSMITH, Assistant Examiner.
Family
ID=
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| USD207794S (en) | Ruler used in mathematics | |
| USD215440S (en) | Log heater | |
| USD204267S (en) | Dental syringe | |
| USD205568S (en) | Clothing display rack | |
| USD226187S (en) | Pallet | |
| USD208598S (en) | Illuminable pen or similar article | |
| USD213378S (en) | Holder for food bowls for pets | |
| USD206919S (en) | Display pedestal for fruit or the like | |
| USD217839S (en) | Rotary wing aircraft or similar article | |
| USD215071S (en) | Anemometer integral cup and arm | |
| USD204335S (en) | ||
| USD239563S (en) | ||
| USD204971S (en) | Sign or similar article | |
| USD214085S (en) | Two-piece squeegee | |
| USD216897S (en) | Retractable leash for dog collars | |
| USD229516S (en) | Safety cotton swab | |
| USD214131S (en) | Lamp base | |
| USD215494S (en) | Postage scale | |
| USD208522S (en) | Two-port connector block | |
| USD215942S (en) | Animal ear tag | |
| USD212284S (en) | Figure | |
| USD208753S (en) | Pinch valve for flexible tubing and the like | |
| USD213379S (en) | Holder for food bowl for pets | |
| USD211810S (en) | Tree support | |
| USD214364S (en) | Bundle he |