File:Patent-US-2217502.pdf
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Dettagli
Inventor |
Joseph Wallace |
---|---|
Assignee |
Joseph Wallace |
Country |
US |
Application N° |
327761 |
Application Date |
1940-04-04 |
Patent N° |
2217502 |
Brevettato |
1940-10-08 |
Priorità |
1940-04-04 |
Brand | |
Title |
Stylographic pen |
Description |
Penna a stilo |
Riferimenti esterni
Informazioni
Brevetto per la costruzione di una penna a stilo.
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 16:04, 21 March 2021 | ![]() | 1,159 × 1,704, 4 pages (236 KB) | Piccardi (talk | contribs) | {{PatentInfo |Assignee=Joseph Wallace |Country=US |ApplicationNum=327761 |ApplicationDate=1940-04-04 |PatentNum=2217502 |PatentDate=1940-10-08 |PriorityDate=1940-04-04 |Titolo=Stylographic pen |Marca=Inkograph |Descrizione=Penna a stilo }} ==Informazio... |
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