Revision history of "File:Patent-FR-520595.pdf"

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Fatti riguardanti Patent-FR-520595.pdf
Application dateluglio 15, 1920 +
Application number520595 +
Assigned toSociété Pecco & Co. +
Patent dategiugno 28, 1921 +
Patent descriptionCaricamento rientrante +
Patent number520595 +
Patent titlePerfectionnements dans les plumes à réservoir +
Patented byStilus +
Patented inFR +
Priority dateaprile 9, 1920 +
Same invention ofFile:Patent-CH-91351.pdf + e File:Patent-DE-368196.pdf +
Used for featureSafety filler +