Proprietà:Patent title

Titolo del brevetto (come riportato sullo stesso).

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Patent-GB-607060.pdf +

Improvements in and relating to fountain pens +

Patent-GB-608987.pdf +

Improvements in and relating to Pen Nibs +

Patent-GB-609128.pdf +

Improvements in or relating to Fountain Pens +

Patent-GB-610253.pdf +

Improvements relating to self-filling fountain pens +

Patent-GB-612867.pdf +

Improvements in Fountain Pens and the like +