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The ''safety filler'' was born in the United States in the last decade of 1800, although it is not possible to define precisely an inventor, it is attributed if not the invention at least the massive introduction on the market to [[Waterman]], which was the main U.S. manufacturer to adopt it on a large scale.<ref>But the company has done so using many patents of ''Francis C. Brown'', of [[Caw's]]</ref> However, it has had a much greater success in Europe, where at the beginning of the century practically all the producers (and in particular the German ones, among which the [[Kaweco]] stands out, who also made some developments) made use of this system, and where it has remained in production much longer.

The ''safety filler'' was born in the United States in the last decade of 1800, although it is not possible to define precisely an inventor, it is attributed if not the invention at least the massive introduction on the market to [[Waterman]], which was the main U.S. manufacturer to adopt it on a large scale.<ref>But the company has done so using many patents of ''Francis C. Brown'', of [[Caw's]]</ref> However, it has had a much greater success in Europe, where at the beginning of the century practically all the producers (and in particular the German ones, among which the [[Kaweco]] stands out, who also made some developments) made use of this system, and where it has remained in production much longer.

Benché lo sia classificato, forse ingiustamente, fra i sistemi di caricamento primitivi, in realtà il ''safety filler'' ha resistito sul mercato molto più a lungo di altri sistemi di riempimento creati in periodi successivi. In particolare in Europa si trovano in produzione modelli di serie che lo utilizzano fino a tutti gli anni '20. A causa del suo valore storico, che lo vede essere sostanzialmente il primo sistema meccanico dedicato al riempimento della penna, esso continua a riscuotere un innegabile interesse da parte dei collezionisti, molti dei quali hanno una particolare predilezione per le penne ''[[rientranti]]''.<noinclude>

Although it is classified, perhaps unjustly, among the primitive loading systems, in reality the ''safety filler'' has resisted on the market much longer than other filling systems created in later periods. In particular, in Europe there are mass-produced models that use it until the 1920s. Because of its historical value, which sees it as substantially the first mechanical system dedicated to filling the pen, it continues to receive an undeniable interest from collectors, many of whom have a particular preference for [[safety]] pens.<noinclude>

==Brevetti correlati==

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[[Categoria:Vocabolario]]

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