DE190962C - - Google Patents
Info
- Publication number
- DE190962C DE190962C DENDAT190962D DE190962DA DE190962C DE 190962 C DE190962 C DE 190962C DE NDAT190962 D DENDAT190962 D DE NDAT190962D DE 190962D A DE190962D A DE 190962DA DE 190962 C DE190962 C DE 190962C
- Authority
- DE
- Germany
- Prior art keywords
- ruler
- longitudinal edge
- angle
- side edges
- line
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000005259 measurement Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
- B43L—ARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
- B43L7/00—Straightedges
- B43L7/005—Straightedges combined with other drawing aids
Landscapes
- Length-Measuring Instruments Using Mechanical Means (AREA)
- Drawing Aids And Blackboards (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE190962C true DE190962C (cs) |
Family
ID=454390
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT190962D Active DE190962C (cs) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE190962C (cs) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2681508A (en) * | 1952-09-11 | 1954-06-22 | Ralph A Palmer | Sighting device |
| WO1986000578A1 (en) * | 1984-07-04 | 1986-01-30 | Eun Han Yun | Combined ruler protractor |
-
0
- DE DENDAT190962D patent/DE190962C/de active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2681508A (en) * | 1952-09-11 | 1954-06-22 | Ralph A Palmer | Sighting device |
| WO1986000578A1 (en) * | 1984-07-04 | 1986-01-30 | Eun Han Yun | Combined ruler protractor |
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