DE239223C - - Google Patents
Info
- Publication number
- DE239223C DE239223C DENDAT239223D DE239223DA DE239223C DE 239223 C DE239223 C DE 239223C DE NDAT239223 D DENDAT239223 D DE NDAT239223D DE 239223D A DE239223D A DE 239223DA DE 239223 C DE239223 C DE 239223C
- Authority
- DE
- Germany
- Prior art keywords
- compass
- leg
- circumferential
- elliptical
- frame
- 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
- 238000007373 indentation Methods 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 239000007787 solid Substances 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
- B43L11/055—Non-circular-curve-drawing instruments for drawing conic sections for drawing ellipses with guides
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Orthopedics, Nursing, And Contraception (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE239223C true DE239223C (cs) |
Family
ID=498684
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT239223D Active DE239223C (cs) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE239223C (cs) |
-
0
- DE DENDAT239223D patent/DE239223C/de active Active
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