File:Patent-US-2186870.pdf
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| Inventor |
David Kahn |
|---|---|
| Assignee |
David Kahn Inc |
| Country |
US |
| Application N° |
231584 |
| Application Date |
1938-09-24 |
| Patent N° |
2186870 |
| Brevettato |
1940-01-09 |
| Priorità |
1938-09-24 |
| Brand | |
| Title |
Mechanical pencil |
| Description |
Matita meccanica |
Riferimenti esterni
Informazioni
Brevetto per una matita meccanica. Riferimenti a richiesta n° 733524 del 1934-07-02.
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 21:45, 9 August 2013 |  | 1,159 × 1,704, 5 pages (308 KB) | Piccardi (talk | contribs) | {{PatentInfo |Inventor=David Kahn |Assignee=David Kahn Inc |Country=US |ApplicationNum=231584 |ApplicationDate=1938-09-24 |PatentNum=2186870 |PatentDate=1940-01-09 |PriorityDate=1938-09-24 |Titolo=Mechanical pencil |Marca=Wearever |Descrizione=Matita m... |
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Metadata
Fatti riguardanti Patent-US-2186870.pdf
| Application date | settembre 24, 1938 + |
| Application number | 231584 + |
| Assigned to | David Kahn Inc + |
| Invented by | David Kahn + |
| Patent date | gennaio 9, 1940 + |
| Patent description | Matita meccanica + |
| Patent number | 2186870 + |
| Patent title | Mechanical pencil + |
| Patented by | Wearever + |
| Patented in | US + |
| Priority date | settembre 24, 1938 + |
