CA259340A - Fabrication de mine a crayons - Google Patents
Fabrication de mine a crayonsInfo
- Publication number
- CA259340A CA259340A CA259340A CA259340DA CA259340A CA 259340 A CA259340 A CA 259340A CA 259340 A CA259340 A CA 259340A CA 259340D A CA259340D A CA 259340DA CA 259340 A CA259340 A CA 259340A
- Authority
- CA
- Canada
- Prior art keywords
- pencil lead
- lead manufacture
- manufacture
- pencil
- lead
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 238000004519 manufacturing process Methods 0.000 title 1
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA259340T |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA259340A true CA259340A (fr) | 1926-03-30 |
Family
ID=35167888
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA259340A Expired CA259340A (fr) | Fabrication de mine a crayons |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA259340A (fr) |
-
0
- CA CA259340A patent/CA259340A/fr not_active Expired
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