Revision history of "File:Patent-US-1918239.pdf"

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  • (cur | prev) 02:06, 23 August 2013Piccardi (talk | contribs). . (383 bytes) (+26)
  • (cur | prev) 16:39, 30 June 2012Piccardi (talk | contribs). . (357 bytes) (+357). . ({{PatentInfo |Inventor=Leon H. Ashmore |Assignee=The Esterbrook Steel Pen Manfacturing Co. |Country=US |ApplicationNum=228943 |ApplicationDate=1931-12-24 |PatentNum=1918239 |PatentDate=1933-07-18 |PriorityDate=1931-12-24 |Titolo=Fountain pen |Marca=Est...)
Fatti riguardanti Patent-US-1918239.pdf
Application datedicembre 24, 1931 +
Application number228943 +
Assigned toThe Esterbrook Steel Pen Manfacturing Co. +
Invented byLeon H. Ashmore +
Patent dateluglio 18, 1933 +
Patent descriptionPennino intercambiabile +
Patent number1918239 +
Patent titleFountain pen +
Patented byEsterbrook +
Patented inUS +
Priority datedicembre 24, 1931 +
Used for featurePennino +