File:Patent-US-2692580.pdf

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Original file(1,159 × 1,704 pixels, file size: 446 KB, MIME type: application/pdf, 7 pages)
Inventor

David Kahn, Karl Weisser

Assignee

David Kahn Inc

Country

US

Application N°

320944

Application Date

1952-11-17

Patent N°

2692580

Brevettato

1954-10-26

Priorità

1952-11-17

Brand

Wearever

Title

Writing instrument

Description

Penna a sfera

Riferimenti esterni

Informazioni

Brevetto per una penna a sfera. Riferimenti a nº US-1850086, nº US-1874110, nº US-2153488, nº US-2449218, nº US-2468258, nº US-2500979, nº US-2536923 e nº US-2580753 ed inoltre nº FR-628418, nº IT-434348, nº AU-128697, nº FR-962297, nº GB-641595.

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current03:28, 11 August 2013Thumbnail for version as of 03:28, 11 August 20131,159 × 1,704, 7 pages (446 KB)Piccardi (talk | contribs){{PatentInfo |Inventor=David Kahn, Karl Weisser |Assignee=David Kahn Inc |Country=US |ApplicationNum=320944 |ApplicationDate=1946-10-11 |PatentNum=2692580 |PatentDate=1952-11-17 |PriorityDate=1952-11-17 |Titolo=Writing instrument |Marca=Wearever |Descr...
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