File:Patent-GB-475970.pdf

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Original file(1,295 × 1,752 pixels, file size: 344 KB, MIME type: application/pdf, 4 pages)
Inventor

William F. Johnson

Assignee

Mentmore Manufacturing Company Limited

Country

GB

Application N°

15921/36

Application Date

1936-06-06

Patent N°

475970

Brevettato

1937-11-30

Priorità

1936-06-06

Brand

Mentmore

Title

Improvements in or relating to self-filling fountain pens

Description

Sistema di caricamento

Riferimenti esterni

Informazioni

Brevetto per una variante di sistema di caricamento a sfiatatoio in cui la depressione viene ottenuta con un meccanismo simile al Touch Down che opera sulla pompetta. Stessa invenzione di nº FR-822628. Stessa invenzione di nº US-2123110. Stessa invenzione di nº CA-382339.

File history

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current01:19, 28 November 2013Thumbnail for version as of 01:19, 28 November 20131,295 × 1,752, 4 pages (344 KB)Piccardi (talk | contribs){{PatentInfo |Inventor=William F. Johnson |Assignee=Mentmore Manufacturing Company Limited |Country=GB |ApplicationNum=15921/36 |ApplicationDate=1936-06-06 |PatentNum=475970 |PatentDate=1937-11-30 |PriorityDate=1936-06-06 |Titolo=Improvements in or rel...
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Metadata

关于“Patent-GB-475970.pdf”的事实
Application date1936年6月6日 (六) +
Application number15921/36 +
Assigned toMentmore Manufacturing Company Limited +
Invented byWilliam F. Johnson +
Patent date1937年11月30日 (二) +
Patent descriptionSistema di caricamento +
Patent number475970 +
Patent titleImprovements in or relating to self-filling fountain pens +
Patented byMentmore +
Patented inGB +
Priority date1936年6月6日 (六) +
Same invention ofFile:Patent-FR-822628.pdf +File:Patent-US-2123110.pdf +File:Patent-CA-382339.pdf +