Proprietà:Patent title

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Titolo del brevetto (come riportato sullo stesso).

precedenti 202050100250500successivi 20
Showing 20 pages using this property.
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Patent-US-202654.pdf +
Pencil  +
Patent-US-202655.pdf +
Improvement in fountain-pens  +
Patent-US-2028855.pdf +
Mechanical pencil  +
Patent-US-2030452.pdf +
Soluble ink fountain pen  +
Patent-US-2031343.pdf +
Fountain pen  +
Patent-US-2033164.pdf +
Writing pen  +
Patent-US-2035225.pdf +
Pencil  +
Patent-US-2035278.pdf +
Fountain pen  +
Patent-US-2035372.pdf +
Fountain pen  +
Patent-US-2035378.pdf +
Fountain pen  +
Patent-US-2037177.pdf +
Fountain pen  +
Patent-US-2037699.pdf +
Pen and method of making the same  +
Patent-US-2040999.pdf +
Fountain pen  +
Patent-US-2048127.pdf +
Fountain pen cap and clip  +
Patent-US-2051337.pdf +
Improvements in or relating to Writing Points or Nibs  +
Patent-US-2056055.pdf +
Self filling fountain pen  +
Patent-US-2059577.pdf +
Fountain pen  +
Patent-US-2061405.pdf +
Soluble ink fountain pen  +
Patent-US-206200.pdf +
Improvement in fountain-pen holders  +
Patent-US-2068419.pdf +
Fountain pen  +
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