File:Patent-US-2091648.pdf
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Dettagli
Inventor |
Wilbur K. Olson |
---|---|
Assignee |
W. A. Sheaffer Pen Company |
Country |
US |
Application N° |
57628 |
Application Date |
1936-01-04 |
Patent N° |
2091648 |
Brevettato |
1937-08-31 |
Priorità |
1936-01-04 |
Brand | |
Title |
Fountain pen |
Description |
Riferimenti esterni
Informazioni
Brevetto per un caricamento a sfiatatoio molto simile al caricamento Vacumatic, mai prodotto.
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current | 20:22, 14 July 2012 | 1,159 × 1,704, 4 pages (245 KB) | Piccardi (talk | contribs) | {{PatentInfo |Inventor=Wilbur K. Olson |Assignee=W. A. Sheaffer Pen Company |Country=US |ApplicationNum=57628 |ApplicationDate=1936-01-04 |PatentNum=2091648 |PatentDate=1937-08-31 |PriorityDate=1936-01-04 |Titolo=Fountain pen |Marca=Sheaffer |Descrizio... |
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