File:Patent-GB-457212.pdf
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Original file (1,295 × 1,752 pixels, file size: 427 KB, MIME type: application/pdf, 5 pages)
Dettagli
| Inventor |
William F. Johnson |
|---|---|
| Assignee |
The Spot Pen Limited |
| Country |
GB |
| Application N° |
20767/35 |
| Application Date |
1935-07-22 |
| Patent N° |
457212 |
| Brevettato |
1936-11-24 |
| Priorità |
1935-07-22 |
| Brand | |
| Title |
Improvements in or relating to self-filling fountain pens |
| Description |
Sistema di caricamento |
Riferimenti esterni
Informazioni
Brevetto per un sistema di caricamento piuttosto complesso azionato dalla rotazione del fondello, estraendo il quale si tira una barra che fa inarcare una molla. Ha una vaga somiglianza con il caricamento a pulsante di fondo ma si basa su un principio meccanico completamente diverso.
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 23:00, 17 April 2013 |  | 1,295 × 1,752, 5 pages (427 KB) | Piccardi (talk | contribs) | {{PatentInfo |Inventor=William Frederick Johnson |Assignee=The Spot Pen Limited |Country=GB |ApplicationNum=20767/35 |ApplicationDate=1935-07-22 |PatentNum=457212 |PatentDate=1936-11-24 |PriorityDate=1935-07-22 |Titolo=Improvements in or relating to se... |
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