FR670953A - Porte-mines-règle à calcul - Google Patents
Porte-mines-règle à calculInfo
- Publication number
- FR670953A FR670953A FR670953DA FR670953A FR 670953 A FR670953 A FR 670953A FR 670953D A FR670953D A FR 670953DA FR 670953 A FR670953 A FR 670953A
- Authority
- FR
- France
- Prior art keywords
- mechanical pencil
- pencil
- mechanical
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
- B43K—IMPLEMENTS FOR WRITING OR DRAWING
- B43K29/00—Combinations of writing implements with other articles
- B43K29/08—Combinations of writing implements with other articles with measuring, computing or indicating devices
- B43K29/093—Combinations of writing implements with other articles with measuring, computing or indicating devices with calculators
Landscapes
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR670953T | 1928-07-07 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR670953A true FR670953A (fr) | 1929-12-06 |
Family
ID=9016695
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR670953D Expired FR670953A (fr) | 1928-07-07 | 1928-07-07 | Porte-mines-règle à calcul |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR670953A (fr) |
-
1928
- 1928-07-07 FR FR670953D patent/FR670953A/fr not_active Expired
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