BE427158A - - Google Patents
Info
- Publication number
- BE427158A BE427158A BE427158DA BE427158A BE 427158 A BE427158 A BE 427158A BE 427158D A BE427158D A BE 427158DA BE 427158 A BE427158 A BE 427158A
- Authority
- BE
- Belgium
- Prior art keywords
- slate
- emi
- frame
- cork
- artificial
- Prior art date
Links
- 239000010454 slate Substances 0.000 claims description 37
- 239000007799 cork Substances 0.000 claims description 15
- 239000011111 cardboard Substances 0.000 claims description 7
- 238000004519 manufacturing process Methods 0.000 claims description 6
- 239000011093 chipboard Substances 0.000 claims description 5
- 238000005266 casting Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- 229910001651 emery Inorganic materials 0.000 claims description 2
- 239000008187 granular material Substances 0.000 claims description 2
- 230000008569 process Effects 0.000 claims description 2
- 239000000123 paper Substances 0.000 claims 1
- 230000003014 reinforcing effect Effects 0.000 claims 1
- -1 sawdust Substances 0.000 claims 1
- 239000000463 material Substances 0.000 description 9
- 239000002184 metal Substances 0.000 description 5
- 230000002787 reinforcement Effects 0.000 description 5
- 239000002023 wood Substances 0.000 description 5
- 230000007547 defect Effects 0.000 description 2
- 239000010985 leather Substances 0.000 description 2
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
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
- B43L1/02—Slates
Landscapes
- Drawing Aids And Blackboards (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR49124T | 1938-01-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE427158A true BE427158A (enrdf_load_stackoverflow) |
Family
ID=8684343
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE427158D BE427158A (enrdf_load_stackoverflow) | 1938-01-27 |
Country Status (2)
| Country | Link |
|---|---|
| BE (1) | BE427158A (enrdf_load_stackoverflow) |
| FR (2) | FR821071A (enrdf_load_stackoverflow) |
-
0
- BE BE427158D patent/BE427158A/fr unknown
-
1937
- 1937-04-24 FR FR821071D patent/FR821071A/fr not_active Expired
-
1938
- 1938-01-27 FR FR49124D patent/FR49124E/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR49124E (fr) | 1938-11-07 |
| FR821071A (fr) | 1937-11-26 |
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