BE439319A - - Google Patents
Info
- Publication number
- BE439319A BE439319A BE439319DA BE439319A BE 439319 A BE439319 A BE 439319A BE 439319D A BE439319D A BE 439319DA BE 439319 A BE439319 A BE 439319A
- 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
- B43L1/00—Repeatedly-usable boards or tablets for writing or drawing
- B43L1/04—Blackboards
- B43L1/10—Writing surfaces thereof
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DES138662D DE735756C (de) | 1939-09-20 | 1939-09-20 | Schreibtafeln aus Aluminium oder Aluminiumlegierungen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE439319A true BE439319A (en:Method) |
Family
ID=7540895
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE439319D BE439319A (en:Method) | 1939-09-20 |
Country Status (2)
| Country | Link |
|---|---|
| BE (1) | BE439319A (en:Method) |
| DE (1) | DE735756C (en:Method) |
-
0
- BE BE439319D patent/BE439319A/xx unknown
-
1939
- 1939-09-20 DE DES138662D patent/DE735756C/de not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE735756C (de) | 1943-05-25 |