FR849421A - Porte-mines à changement de mines - Google Patents
Porte-mines à changement de minesInfo
- Publication number
- FR849421A FR849421A FR849421DA FR849421A FR 849421 A FR849421 A FR 849421A FR 849421D A FR849421D A FR 849421DA FR 849421 A FR849421 A FR 849421A
- Authority
- FR
- France
- Prior art keywords
- mines
- change
- 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
- B43K24/00—Mechanisms for selecting, projecting, retracting or locking writing units
- B43K24/10—Mechanisms for selecting, projecting, retracting or locking writing units for selecting, projecting and locking several writing units
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE509688X | 1938-02-23 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR849421A true FR849421A (fr) | 1939-11-23 |
Family
ID=6547271
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR849421D Expired FR849421A (fr) | 1938-02-23 | 1939-01-26 | Porte-mines à changement de mines |
Country Status (3)
Country | Link |
---|---|
US (1) | US2162249A (fr) |
FR (1) | FR849421A (fr) |
GB (1) | GB509688A (fr) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2603187A (en) * | 1949-09-02 | 1952-07-15 | Birome Sa | Writing instrument of the retractable tip type |
DE1262144B (de) * | 1958-04-09 | 1968-02-29 | Bernhard Naegele Jun | Druckschreibstift |
-
1939
- 1939-01-26 FR FR849421D patent/FR849421A/fr not_active Expired
- 1939-02-10 US US255664A patent/US2162249A/en not_active Expired - Lifetime
- 1939-02-11 GB GB4559/39A patent/GB509688A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
US2162249A (en) | 1939-06-13 |
GB509688A (en) | 1939-07-19 |
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