File:Patent-US-1028382.pdf

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Original file(1,159 × 1,704 pixels, file size: 79 KB, MIME type: application/pdf, 2 pages)
Inventor

George S. Parker

Assignee

George S. Parker

Country

US

Application N°

510549

Application Date

1909-07-31

Patent N°

1028382

Brevettato

1912-06-04

Priorità

1909-07-31

Brand

Parker

Title

Safety-cap for fountain-pens

Description

Cappuccio a tenuta

Riferimenti esterni

Informazioni

Brevetto per la costruzione di un cappuccio dotato di controcappuccio per avere una chiusura di sicurezza (il cosiddetto Jack Knife cap) a tenuta ed evitare le perdite di inchiostro (introdotto con le Jack-Knife Safety). Stampigliato sulle Jack-Knife Safety. In una pubblicità del 1922 si fa riferimento a questo sistema anche come Safety Seal.

File history

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current23:53, 2 July 2012Thumbnail for version as of 23:53, 2 July 20121,159 × 1,704, 2 pages (79 KB)Piccardi (talk | contribs){{PatentInfo |Inventor=George S. Parker |Assignee=George S. Parker |Country=US |ApplicationNum=510549 |ApplicationDate=1909-06-31 |PatentNum=1028382 |PatentDate=1911-06-04 |PriorityDate=1909-06-31 |Titolo=Safety-cap for fountain-pens |Marca=Parker |Des...
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