File:Patent-US-2513380.pdf
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Inventor |
Samuel E. Townsend |
---|---|
Assignee |
The Esterbrook Pen Company |
Country |
US |
Application N° |
733073 |
Application Date |
1947-03-07 |
Patent N° |
2513380 |
Brevettato |
1950-07-04 |
Priorità |
1947-03-07 |
Brand | |
Title |
Writing instrument |
Description |
Pennino a sfera |
Riferimenti esterni
Informazioni
Brevetto per un pennino realizzato come un cono con una sferetta in cima, funzionante comunque per capillarità. Riferimenti a nº US-1527971, nº US-2149557, nº US-2292381 e nº US-2430023.
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current | 22:03, 6 August 2012 | ![]() | 1,159 × 1,704, 4 pages (281 KB) | Piccardi (talk | contribs) | {{PatentInfo |Inventor=Samuel E. Townsend |Assignee=The Esterbrook Pen Company |Country=US |ApplicationNum=733073 |ApplicationDate=1947-03-07 |PatentNum=2430023 |PatentDate=1950-07-04 |PriorityDate=1947-03-07 |Titolo=Writing instrument |Marca=Esterbroo... |
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Fatti riguardanti Patent-US-2513380.pdf
Application date | marzo 7, 1947 + |
Application number | 733073 + |
Assigned to | The Esterbrook Pen Company + |
Invented by | Samuel E. Townsend + |
Mention patent | File:Patent-US-1527971.pdf +, File:Patent-US-2149557.pdf +, ![]() ![]() |
Patent date | luglio 4, 1950 + |
Patent description | Pennino a sfera + |
Patent number | 2513380 + |
Patent title | Writing instrument + |
Patented by | Esterbrook + |
Patented in | US + |
Priority date | marzo 7, 1947 + |