BE520053A - - Google Patents
Info
- Publication number
- BE520053A BE520053A BE520053DA BE520053A BE 520053 A BE520053 A BE 520053A BE 520053D A BE520053D A BE 520053DA BE 520053 A BE520053 A BE 520053A
- 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
- B43L13/147—Three-dimensional devices
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH2807090X | 1952-05-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE520053A true BE520053A (de) |
Family
ID=4571928
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE520053D BE520053A (de) | 1952-05-30 |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US2807090A (de) |
| BE (1) | BE520053A (de) |
| FR (1) | FR1077867A (de) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB0201538D0 (en) * | 2002-01-24 | 2002-03-13 | Lewis Robert A W | Drawing aid |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1064878A (en) * | 1912-04-20 | 1913-06-17 | Joseph D C Young | Drafting appliance. |
| US1346593A (en) * | 1920-05-07 | 1920-07-13 | Clercq Hendrik De | Drawing-board |
| BE375319A (de) * | 1929-11-30 | |||
| US2210895A (en) * | 1940-01-06 | 1940-08-13 | Bradley Milton Co | Drawing apparatus |
| US2413376A (en) * | 1944-05-09 | 1946-12-31 | Mildred Hirshstein | Drafting machine |
-
0
- BE BE520053D patent/BE520053A/xx unknown
-
1953
- 1953-05-27 FR FR1077867D patent/FR1077867A/fr not_active Expired
- 1953-05-29 US US358245A patent/US2807090A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| US2807090A (en) | 1957-09-24 |
| FR1077867A (fr) | 1954-11-12 |