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Fatti riguardanti Patent-US-1828019.pdf
Application date | luglio 7, 1930 + |
Application number | 446215 + |
Assigned to | The Conklin Pen Company + |
Invented by | Gerald L. Bassett + |
Mention patent | ![]() |
Patent date | ottobre 20, 1931 + |
Patent description | Base stiloforo + |
Patent number | 1828019 + |
Patent title | Fountain pen filling device + |
Patented by | Conklin Pen Manufacturing Co. + |
Patented in | US + |
Priority date | luglio 7, 1930 + |
Used for feature | Stiloforo + |