DE285746C - - Google Patents
Info
- Publication number
- DE285746C DE285746C DENDAT285746D DE285746DA DE285746C DE 285746 C DE285746 C DE 285746C DE NDAT285746 D DENDAT285746 D DE NDAT285746D DE 285746D A DE285746D A DE 285746DA DE 285746 C DE285746 C DE 285746C
- Authority
- DE
- Germany
- Prior art keywords
- compass
- thread
- hold
- ring
- pencil
- 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
- 210000003128 head Anatomy 0.000 claims description 3
- 230000003247 decreasing effect Effects 0.000 description 1
- 210000005069 ears Anatomy 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000000149 penetrating effect Effects 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
- B43L11/00—Non-circular-curve-drawing instruments
- B43L11/02—Non-circular-curve-drawing instruments for drawing conic sections
- B43L11/04—Non-circular-curve-drawing instruments for drawing conic sections for drawing ellipses
- B43L11/045—Non-circular-curve-drawing instruments for drawing conic sections for drawing ellipses with cords or like flexible elements
Landscapes
- Storage Of Web-Like Or Filamentary Materials (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE285746C true DE285746C (enrdf_load_stackoverflow) |
Family
ID=541117
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT285746D Active DE285746C (enrdf_load_stackoverflow) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE285746C (enrdf_load_stackoverflow) |
-
0
- DE DENDAT285746D patent/DE285746C/de active Active
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