CH96192A - Compasses for drawing egg-shaped curves. - Google Patents
Compasses for drawing egg-shaped curves.Info
- Publication number
- CH96192A CH96192A CH96192DA CH96192A CH 96192 A CH96192 A CH 96192A CH 96192D A CH96192D A CH 96192DA CH 96192 A CH96192 A CH 96192A
- Authority
- CH
- Switzerland
- Prior art keywords
- compasses
- shaped curves
- egg
- drawing egg
- curves
- Prior art date
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
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B17/00—Sulfur; Compounds thereof
- C01B17/48—Sulfur dioxide; Sulfurous acid
- C01B17/50—Preparation of sulfur dioxide
- C01B17/54—Preparation of sulfur dioxide by burning elemental sulfur
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Toys (AREA)
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE346077T | 1920-12-15 | ||
CH96192T | 1921-05-11 | ||
FR539352T | 1921-05-21 | ||
GB19061/21A GB187031A (en) | 1920-12-15 | 1921-07-14 | Instrument for drawing oviform curves |
Publications (1)
Publication Number | Publication Date |
---|---|
CH96192A true CH96192A (en) | 1922-09-16 |
Family
ID=10123097
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH96192D CH96192A (en) | 1920-12-15 | 1921-05-11 | Compasses for drawing egg-shaped curves. |
Country Status (4)
Country | Link |
---|---|
CH (1) | CH96192A (en) |
DE (1) | DE346077C (en) |
FR (1) | FR539352A (en) |
GB (1) | GB187031A (en) |
-
1920
- 1920-12-15 DE DE1920346077D patent/DE346077C/de not_active Expired
-
1921
- 1921-05-11 CH CH96192D patent/CH96192A/en unknown
- 1921-05-21 FR FR539352D patent/FR539352A/en not_active Expired
- 1921-07-14 GB GB19061/21A patent/GB187031A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
GB187031A (en) | 1922-10-16 |
DE346077C (en) | 1921-12-23 |
FR539352A (en) | 1922-06-24 |
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