File:Patent-US-2091648.pdf

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Original file(1,159 × 1,704 pixels, file size: 245 KB, MIME type: application/pdf, 4 pages)
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

Sheaffer

Title

Fountain pen

Description

Caricamento Vacumatic

Riferimenti esterni

Informazioni

Brevetto per un caricamento a sfiatatoio molto simile al caricamento Vacumatic, mai prodotto.

File history

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current21:22, 14 July 2012Thumbnail for version as of 21:22, 14 July 20121,159 × 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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