BE636275A - - Google Patents
Info
- Publication number
- BE636275A BE636275A BE636275DA BE636275A BE 636275 A BE636275 A BE 636275A BE 636275D A BE636275D A BE 636275DA BE 636275 A BE636275 A BE 636275A
- Authority
- BE
- Belgium
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
- B43L13/00—Drawing instruments, or writing or drawing appliances or accessories not otherwise provided for
- B43L13/14—Devices for drawing in perspective
- B43L13/141—Two-dimensional devices
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DET0024508 | 1963-08-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE636275A true BE636275A (en:Method) |
Family
ID=7551495
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE636275D BE636275A (en:Method) | 1963-08-16 |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE636275A (en:Method) |
| DE (1) | DE1461574A1 (en:Method) |
| GB (1) | GB1037684A (en:Method) |
| NL (1) | NL296867A (en:Method) |
-
0
- NL NL296867D patent/NL296867A/xx unknown
- BE BE636275D patent/BE636275A/xx unknown
-
1963
- 1963-08-16 DE DE19631461574 patent/DE1461574A1/de not_active Withdrawn
- 1963-08-19 GB GB3268763A patent/GB1037684A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE1461574A1 (de) | 1969-03-06 |
| NL296867A (en:Method) | |
| GB1037684A (en) | 1966-08-03 |