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- 609 byte (76 parole) - 23:13, 19 ago 2019
File:1955-04-DiplomaticPatentedPen.jpg (561 × 1 439 (239 KB)) - 21:02, 17 dic 2021File:Patent-FR-701215.pdf (1 295 × 1 752 (144 KB)) - 01:29, 12 dic 2021File:1955-12-DiplomaticPatentedPen.jpg (2 737 × 4 788 (939 KB)) - 21:08, 17 dic 2021- 40 byte (4 parole) - 22:45, 20 dic 2018
File:1971-Sheaffer-Multiple-Instro-Ext.jpg (5 371 × 2 998 (5,91 MB)) - 12:07, 1 feb 2022- 2 KB (252 parole) - 19:10, 3 ott 2021
- 3 KB (466 parole) - 02:43, 15 ago 2019
File:1970-10-Parker51-75-EtAl-Istro-Recto.jpg (3 017 × 7 505 (5,25 MB)) - 02:03, 12 mar 2022- 4 KB (548 parole) - 22:21, 28 nov 2023
- 490 byte (73 parole) - 23:23, 19 ago 2019
File:Patent-GB-738754.pdf (1 295 × 1 752 (502 KB)) - 22:48, 11 dic 2021File:Patent-FR-1073346.pdf (1 295 × 1 752 (416 KB)) - 02:29, 11 dic 2021- 3 KB (363 parole) - 02:08, 4 nov 2020
- 3 KB (375 parole) - 18:57, 3 ago 2020
- 3 KB (375 parole) - 02:08, 4 nov 2020
- 2 KB (275 parole) - 22:58, 9 mar 2020
File:Patent-DE-963668.pdf (1 295 × 1 752 (413 KB)) - 02:30, 11 dic 2021- 6 KB (771 parole) - 00:18, 16 nov 2023
- 2 KB (326 parole) - 22:55, 22 nov 2021
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