CA442753A - Pencil lead - Google Patents
Pencil leadInfo
- Publication number
- CA442753A CA442753A CA442753A CA442753DA CA442753A CA 442753 A CA442753 A CA 442753A CA 442753 A CA442753 A CA 442753A CA 442753D A CA442753D A CA 442753DA CA 442753 A CA442753 A CA 442753A
- Authority
- CA
- Canada
- Prior art keywords
- pencil lead
- 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
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA442753T |
Publications (1)
Publication Number | Publication Date |
---|---|
CA442753A true CA442753A (en) | 1947-07-08 |
Family
ID=35557980
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA442753A Expired CA442753A (en) | Pencil lead |
Country Status (1)
Country | Link |
---|---|
CA (1) | CA442753A (en) |
-
0
- CA CA442753A patent/CA442753A/en not_active Expired
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