File:Patent-US-2473689.pdf

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Original file(1,159 × 1,704 pixels, file size: 213 KB, MIME type: application/pdf, 4 pages)
Inventor

Charles N. Colstad

Assignee

W. A. Sheaffer Pen Company

Country

US

Application N°

574355

Application Date

1945-01-24

Patent N°

2473689

Brevettato

1949-06-21

Priorità

1945-01-24

Brand

Sheaffer

Title

Clip for writing instruments

Description

Fermaglio a molla

Riferimenti esterni

Informazioni

Brevetto un fermaglio a molla. Riferimenti a nº US-1085174, nº US-1180915 e nº US-2237155.

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current17:43, 15 July 2012Thumbnail for version as of 17:43, 15 July 20121,159 × 1,704, 4 pages (213 KB)Piccardi (talk | contribs){{PatentInfo |Inventor=Charles N. Colstad |Assignee=W. A. Sheaffer Pen Company |Country=US |ApplicationNum=574355 |ApplicationDate=1945-01-24 |PatentNum=2473689 |PatentDate=1949-06-21 |PriorityDate=1945-01-24 |Titolo=Clip for writing instruments |Marca...
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