NL296867A - - Google Patents
Info
- Publication number
- NL296867A NL296867A NL296867DA NL296867A NL 296867 A NL296867 A NL 296867A NL 296867D A NL296867D A NL 296867DA NL 296867 A NL296867 A NL 296867A
- 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
- 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 |
|---|---|
| NL296867A true NL296867A (zh) |
Family
ID=7551495
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL296867D NL296867A (zh) | 1963-08-16 |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE636275A (zh) |
| DE (1) | DE1461574A1 (zh) |
| GB (1) | GB1037684A (zh) |
| NL (1) | NL296867A (zh) |
-
0
- BE BE636275D patent/BE636275A/xx unknown
- NL NL296867D patent/NL296867A/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- 1963-08-16 DE DE19631461574 patent/DE1461574A1/de not_active Withdrawn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 |
|---|---|
| GB1037684A (en) | 1966-08-03 |
| DE1461574A1 (de) | 1969-03-06 |
| BE636275A (zh) |