File:Patent-US-2258841.pdf

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Original file(1,159 × 1,704 pixels, file size: 546 KB, MIME type: application/pdf, 8 pages)
Inventor

Jozsef Laszlo Biro

Assignee

Luis Lang

Country

US

Application N°

389830

Application Date

1941-04-23

Patent N°

2258841

Brevettato

1941-10-14

Priorità

1941-04-23

Brand

Eterpen

Title

Writing instrument

Description

Penna a sfera

Riferimenti esterni

Informazioni

Brevetto per una penna a sfera, la prima versione di Lazlo Biro.

File history

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Date/TimeThumbnailDimensionsUserComment
current00:39, 21 July 2012Thumbnail for version as of 00:39, 21 July 20121,159 × 1,704, 8 pages (546 KB)Piccardi (talk | contribs){{PatentInfo |Inventor=Jozsef Laszlo Biro |Assignee=Luis Lang |Country=US |ApplicationNum=389830 |ApplicationDate=1941-04-23 |PatentNum=2258841 |PatentDate=1941-10-14 |PriorityDate=1941-04-23 |Titolo=Writing instrument |Marca=Eterpen |Descrizione=Penna...
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关于“Patent-US-2258841.pdf”的事实
Application date1941年4月23日 (三) +
Application number389830 +
Assigned toLuis Lang +
Invented byJozsef Laszlo Biro +
Patent date1941年10月14日 (二) +
Patent descriptionPenna a sfera +
Patent number2258841 +
Patent titleWriting instrument +
Patented byEterpen +
Patented inUS +
Priority date1941年4月23日 (三) +