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Teaching protractor |
| D246033 |
Teaching protractor
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| Patent Drawings: | |
| Inventor: |
King |
| Date Issued: |
October 11, 1977 |
| Application: |
05/634,627 |
| Filed: |
November 24, 1975 |
| Inventors: |
King; Dale E. (Fountain Valley, CA)
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| Assignee: |
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| Primary Examiner: |
Holtje; Nelson C. |
| Assistant Examiner: |
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| Attorney Or Agent: |
Bethel; George F. |
| U.S. Class: |
D10/65 |
| Field Of Search: |
D10/61; D10/62; D10/63; D10/64; D10/65; 33/75R |
| International Class: |
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| U.S Patent Documents: |
D156504; D165849; 1665898; 2453261; 3393457; 3453738; 3460261; 3925899 |
| Foreign Patent Documents: |
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| Other References: |
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| Abstract: |
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| Claim: |
The ornamental design for a teaching protractor, as substantially shown. |
| Description: |
FIG. 1 is a top plan view of a teaching protractor showing my new design;
FIG. 2 is a typical side elevational view thereof;
FIG. 3 is a sectional view as taken from line 3--3 of FIG. 1;
FIG. 4 is a bottom plan view thereof;
FIG. 5 is an enlarged sectional view as taken from line 5--5 of FIG. 4;
FIG. 6 is an enlarged sectional view as taken from line 6--6 of FIG. 4.
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