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contributi
Modifiche
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Riga 3:
Riga 3: − + − + + + + +
nessun oggetto della modifica
| 1897 || ''Roy Conklin'' patented the [[crescent filler]]
| 1897 || ''Roy Conklin'' patented the [[crescent filler]]
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| 1898 || ''Roy Conklin'' founded the ''Self Fountain Pen Co.''
| 1898 || ''Roy Conklin'' founded the ''Self-Filling Fountain Pen Company''
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| 1901 || The ''Self Fountain Pen Co.'' was renamed ''[[Conklin|Conklin Pen Manufacturing Co.]]''
| 1901 || The ''Self-Filling Fountain Pen Company'' was renamed ''Conklin Pen Manufacturing Company''
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| 1903 || An aggressive advertising campaign was started having Mark Twain as testimonial
| 1903 || An aggressive advertising campaign was started having Mark Twain as testimonial
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|1904 || ''Roy Conklin'' retires selling his quotes on the company (or 1907)
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| 1907 || The ''Conklin Pen Manufacturing Company'' was renamed ''Conklin Pen Company'' (do not match with patent data)
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| 1916 || The spring clip was patented
| 1916 || The spring clip was patented