DE259455C - - Google Patents
Info
- Publication number
- DE259455C DE259455C DENDAT259455D DE259455DA DE259455C DE 259455 C DE259455 C DE 259455C DE NDAT259455 D DENDAT259455 D DE NDAT259455D DE 259455D A DE259455D A DE 259455DA DE 259455 C DE259455 C DE 259455C
- Authority
- DE
- Germany
- Prior art keywords
- rack
- teeth
- triangles
- different
- ruler
- 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
- 230000012447 hatching Effects 0.000 claims description 3
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
- B43L13/00—Drawing instruments, or writing or drawing appliances or accessories not otherwise provided for
- B43L13/24—Devices for generating stepwise movements of drawing equipment, e.g. for hatching
Landscapes
- Drawing Aids And Blackboards (AREA)
- Length-Measuring Instruments Using Mechanical Means (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE259455C true DE259455C (US20100154141A1-20100624-C00001.png) |
Family
ID=517182
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT259455D Active DE259455C (US20100154141A1-20100624-C00001.png) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE259455C (US20100154141A1-20100624-C00001.png) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3111765A (en) * | 1959-06-26 | 1963-11-26 | Frank J Rodgers | Drafting instrument |
-
0
- DE DENDAT259455D patent/DE259455C/de active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3111765A (en) * | 1959-06-26 | 1963-11-26 | Frank J Rodgers | Drafting instrument |
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