File:Patent-GB-457212.pdf

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Original file(1,295 × 1,752 pixels, file size: 427 KB, MIME type: application/pdf, 5 pages)
Inventor

William F. Johnson

Assignee

The Spot Pen Limited

Country

GB

Application N°

20767/35

Application Date

1935-07-22

Patent N°

457212

Brevettato

1936-11-24

Priorità

1935-07-22

Brand

Mentmore

Title

Improvements in or relating to self-filling fountain pens

Description

Sistema di caricamento

Riferimenti esterni

Informazioni

Brevetto per un sistema di caricamento piuttosto complesso azionato dalla rotazione del fondello, estraendo il quale si tira una barra che fa inarcare una molla. Ha una vaga somiglianza con il caricamento a pulsante di fondo ma si basa su un principio meccanico completamente diverso.

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current23:00, 17 April 2013Thumbnail for version as of 23:00, 17 April 20131,295 × 1,752, 5 pages (427 KB)Piccardi (talk | contribs){{PatentInfo |Inventor=William Frederick Johnson |Assignee=The Spot Pen Limited |Country=GB |ApplicationNum=20767/35 |ApplicationDate=1935-07-22 |PatentNum=457212 |PatentDate=1936-11-24 |PriorityDate=1935-07-22 |Titolo=Improvements in or relating to se...
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Metadata

Facts about "Patent-GB-457212.pdf"
Application dateJuly 22, 1935 +
Application number20767/35 +
Assigned toThe Spot Pen Limited +
Invented byWilliam F. Johnson +
Patent dateNovember 24, 1936 +
Patent descriptionSistema di caricamento +
Patent number457212 +
Patent titleImprovements in or relating to self-filling fountain pens +
Patented byMentmore +
Patented inGB +
Priority dateJuly 22, 1935 +