File:Patent-US-2105189.pdf
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Original file (1,159 × 1,704 pixels, file size: 159 KB, MIME type: application/pdf, 3 pages)
Dettagli
| Inventor |
Benjamin W. Hanle |
|---|---|
| Assignee |
Eagle Pencil Company |
| Country |
US |
| Application N° |
35907 |
| Application Date |
1935-08-13 |
| Patent N° |
2105189 |
| Brevettato |
1938-01-11 |
| Priorità |
1935-08-13 |
| Brand | |
| Title |
Fountain pen |
| Description |
Compensatore pressione |
Riferimenti esterni
Informazioni
Brevetto per un sistema per compensare la pressione nel serbatoio interno della penna quando questa è quasi scarica.
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 17:18, 26 June 2012 |  | 1,159 × 1,704, 3 pages (159 KB) | Piccardi (talk | contribs) | {{PatentInfo |Inventor=Benjamin W. Hanle |Assignee=Eagle Pencil Company |Country=US |ApplicationNum=35907 |ApplicationDate=1935-08-13 |PatentNum=2105189 |PatentDate=1938-01-11 |PriorityDate=1935-08-13 |Titolo=Fountain pen |Marca=Eagle |Descrizione=Comp... |
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