File:Patent-US-1554604.pdf

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Original file(1,159 × 1,704 pixels, file size: 372 KB, MIME type: application/pdf, 5 pages)
Inventor

Walter A. Sheaffer

Assignee

Walter A. Sheaffer

Country

US

Application N°

294929

Application Date

1919-05-05

Patent N°

1554604

Brevettato

1925-09-22

Priorità

1919-05-05

Brand

Sheaffer

Title

Pencil

Description

Matita meccanica

Riferimenti esterni

Informazioni

Brevetto per una matita meccanica.

File history

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Date/TimeThumbnailDimensionsUserComment
current02:41, 14 July 2012Thumbnail for version as of 02:41, 14 July 20121,159 × 1,704, 5 pages (372 KB)Piccardi (talk | contribs){{PatentInfo |Inventor=Walter A. Sheaffer |Assignee=Walter A. Sheaffer |Country=US |ApplicationNum=294929 |ApplicationDate=1925-09-22 |PatentNum=1554604 |PatentDate=1925-09-22 |PriorityDate=1919-05-05 |Titolo=Pencil |Marca=Sheaffer |Descrizione=Matita ...
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关于“Patent-US-1554604.pdf”的事实
Application date1919年5月5日 (一) +
Application number294929 +
Assigned toWalter A. Sheaffer +
Invented byWalter A. Sheaffer +
Patent date1925年9月22日 (二) +
Patent descriptionMatita meccanica +
Patent number1554604 +
Patent titlePencil +
Patented byW. A. Sheaffer Pen Company +
Patented inUS +
Priority date1919年5月5日 (一) +