File:Patent-US-1463803.pdf

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Original file(1,159 × 1,704 pixels, file size: 180 KB, MIME type: application/pdf, 3 pages)
Inventor

William P. De Witt

Assignee

William P. De Witt

Country

US

Application N°

568469

Application Date

1922-06-15

Patent N°

1463803

Brevettato

1923-08-07

Priorità

1922-06-15

Brand

De Witt-La France

Title

Pencil with adjustable lead

Description

Matita meccanica

Riferimenti esterni

Informazioni

Brevetto per una matita meccanica.

File history

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current22:49, 25 June 2012Thumbnail for version as of 22:49, 25 June 20121,159 × 1,704, 3 pages (180 KB)Piccardi (talk | contribs){{PatentInfo |Inventor=William P. De Witt |Assignee=William P. De Witt |Country=US |ApplicationNum=568469 |ApplicationDate=1922-06-15 |PatentNum=1463803 |PatentDate=1923-08-07 |PriorityDate=1922-06-15 |Titolo=Pencil with adjustable lead |Marca=De Witt...
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Facts about "Patent-US-1463803.pdf"
Application dateJune 15, 1922 +
Application number568469 +
Assigned toWilliam P. De Witt +
Invented byWilliam P. De Witt +
Patent dateAugust 7, 1923 +
Patent descriptionMatita meccanica +
Patent number1463803 +
Patent titlePencil with adjustable lead +
Patented byDe Witt-La France +
Patented inUS +
Priority dateJune 15, 1922 +