Proprietà:Patent title

Titolo del brevetto (come riportato sullo stesso).

Showing 20 pages using this property.
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Closure of ink bottles  +
Fountain pen  +
Interchangeable lead pencil  +
Fountain pen  +
Fountain pen  +
Plaque holder and method of making the same  +
Pipe and plaque holder therefor  +
Plaque holder for writing instruments and the like  +
Plaque holder and blank  +
Fountain pen  +
Fountain pen  +
Fountain pen  +
Fountain pen  +
Fountain pen  +
Improvement in fountain-pen holder  +
Fountain pen  +
Fountain pen  +
Fountain pen  +
Pen desk set  +
Decorative tubular article of pyroxylin or the like  +