Proprietà:Patent title
Titolo del brevetto (come riportato sullo stesso).
P
Fountain pen +
Method of decorating plastic articles +
Self-filling sac pen +
Pencil +
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 +