File:Patent-US-1425871.pdf
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Dettagli
Inventor |
John G. Liddel |
---|---|
Assignee |
Moore Pen Company |
Country |
US |
Application N° |
522250 |
Application Date |
1921-12-14 |
Patent N° |
1425871 |
Brevettato |
1922-08-15 |
Priorità |
1921-12-14 |
Brand | |
Title |
Mechanical pencil |
Description |
Matita meccanica |
Riferimenti esterni
Informazioni
Brevetto per una matita meccanica.
File history
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 02:35, 1 July 2012 | ![]() | 1,159 × 1,704, 3 pages (142 KB) | Piccardi (talk | contribs) | {{PatentInfo |Inventor=John G. Liddel |Assignee=Moore Pen Company |Country=US |ApplicationNum=522250 |ApplicationDate=1921-12-14 |PatentNum=1425871 |PatentDate=1922-08-15 |PriorityDate=1921-12-14 |Titolo=Fountain-pen |Marca=Moore |Descrizione=Matita me... |
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