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We summarize in this page, grouped by manufacturers, all patents classified inside the wiki. Not all patents related to fountain pens or held by manufacturers are present here, as many are of little historical interest and never went in production, or they apply to machinery of other devices or to ballpoint or pencils. We listed only those we found relevant for the historical information they contain or the relationships that can be highlight.

We summarize in this page, grouped by manufacturers, all patents classified inside the wiki. Not all patents related to fountain pens or held by manufacturers are present here, as many have little historical interest and never went in production, or they apply to machinery of other devices or to ballpoint or pencils. We listed only those we found relevant for the historical information they contain or the relationships that can be highlight.

For a list in chronological order by application date, see [[Patent chronology| this page]] which is automatically kept in sync with this, as well with the [[Patent list|other one]] ordered by publicaton date. A list ordered by inventors names is instead kept on [[Patent_by_inventor|this page]].

For a list in chronological order by application date, see [[Patent chronology| this page]] which is automatically kept in sync with this, as well with the [[Patent list|other one]] ordered by publicaton date. A list ordered by inventors names is instead kept on [[Patent_by_inventor|this page]].