NL22446C - - Google Patents
Info
- Publication number
- NL22446C NL22446C NL22446DA NL22446C NL 22446 C NL22446 C NL 22446C NL 22446D A NL22446D A NL 22446DA NL 22446 C NL22446 C NL 22446C
- Authority
- NL
- Netherlands
Links
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)
- Drawing Aids And Blackboards (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2737728A GB318024A (en) | 1928-09-24 | 1928-09-24 | Ellipsograph |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL22446C true NL22446C (en) |
Family
ID=10258614
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL22446D NL22446C (en) | 1928-09-24 |
Country Status (2)
| Country | Link |
|---|---|
| GB (1) | GB318024A (en) |
| NL (1) | NL22446C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3364578A (en) * | 1966-08-29 | 1968-01-23 | Nasa Usa | Ellipsograph for pantograph |
| GB2218051A (en) * | 1988-04-08 | 1989-11-08 | Gregory Skilbeck | Ellipse drawing device |
| GB8825034D0 (en) * | 1988-10-21 | 1988-11-30 | Fitch P J | Apparatus for describing curve |
-
0
- NL NL22446D patent/NL22446C/xx active
-
1928
- 1928-09-24 GB GB2737728A patent/GB318024A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB318024A (en) | 1929-08-29 |