File:Patent-US-721549.pdf

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Original file(1,159 × 1,704 pixels, file size: 179 KB, MIME type: application/pdf, 3 pages)

Inventor

August Eberstein

Assignee

August Eberstein

Country

US

Application N°

46973

Application Date

1901-02-12

Patent N°

721549

Brevettato

1903-02-24

Priorità

1901-02-12

Brand

Boston Pen

Title

Fountain pen

Description

Precursore twist filler

Riferimenti esterni

Informazioni

Brevetto di un altro (vedi nº US-719529) caricamento a torsione (twist filler) molto elementare in cui la torsione era effettuata manualmente.

File history

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Date/TimeThumbnailDimensionsUserComment
current22:43, 23 June 2012Thumbnail for version as of 22:43, 23 June 20121,159 × 1,704, 3 pages (179 KB)Piccardi (talk | contribs){{PatentInfo |Inventor=August Eberstein |Assignee=August Eberstein |Country=US |ApplicationNum=46973 |ApplicationDate=1901-02-12 |PatentNum=721549 |PatentDate=1903-02-24 |PriorityDate=1901-02-12 |Titolo=Fountain pen |Marca=Boston Pen Company |Descrizio...

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