Proprietà:Patent title

Titolo del brevetto (come riportato sullo stesso).

Showing 20 pages using this property.
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Lead pencil  +
Fountain-pen  +
Fountain-pen  +
Pen and pencil clip  +
Spring and presser-bar for fountain-pens  +
Fountain-pen  +
Fountain-pen  +
Fountain-pen  +
Fountain-pen clip  +
Writing implement  +
Improved pen and pencil case  +
Self-filling fountain-pen  +
Fountain-pen  +
Self-filling fountain-pen  +
Fountain-pen  +
Improvement in pen-holders  +
Lever-Filler Fountain-pen  +
Fountain-pen  +
Clip for fountain-pens  +