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  • |body=
    729 byte (72 parole) - 22:22, 6 dic 2021
  • |body= |body=
    4 KB (480 parole) - 21:44, 13 lug 2022
  • |body= |body=
    3 KB (398 parole) - 21:44, 13 lug 2022
  • |body= |body=
    2 KB (335 parole) - 21:42, 13 lug 2022
  • ...itation of the [[Vacumatic]] one. The pens were also made with transparent body in order to display the ink level. The cap was screw closed. ...ered and ending in a conical shape both for cap bottom than the end of the body. The clip was inserted in the cap by joints, as it was done in a single pie
    5 KB (847 parole) - 16:32, 4 apr 2023
  • |body= |body=
    2 KB (247 parole) - 21:40, 13 lug 2022
  • ...struction mode do not have a section, being the nib retractable inside the body of the pen.
    2 KB (387 parole) - 23:49, 7 mar 2018
  • |body = 10.4 |body = 13.3
    5 KB (711 parole) - 01:02, 7 dic 2021
  • ...9}}, by David J. La France). The new system was based on the fact that the body of the pen slides around a metal tube screwed on the nib assembly to which ...aeration hole on the bottom. The filling was obtained by sliding back the body of the pen and then bringing it back into position by keeping the hole in t
    3 KB (559 parole) - 12:23, 31 ott 2020
  • ...her tube filling systems, except that in this case the pressure inside the body of the pen is exerted through a hollow piston which is accessed from the bo ...o extract the cylindrical piston, which slides tightly with respect to the body of the pen, and to carry out the pumping action through it. The mechanism i
    2 KB (377 parole) - 13:14, 26 feb 2023
  • |body= |body=
    2 KB (256 parole) - 21:42, 13 lug 2022
  • ...st with the nib assembly (in some cases a special recess is created on the body itself). On the upper side it comes out, through a curved end, from a hole ...vantage of this system is that there is no need for a side slit in the pen body. The fact that the access to the button was protected by an screw-on blind
    4 KB (599 parole) - 01:28, 4 nov 2020
  • |body=
    893 byte (104 parole) - 22:21, 6 dic 2021
  • |body=
    811 byte (89 parole) - 22:22, 6 dic 2021
  • ...pump, similar to that of a dropper, inserted directly on the bottom of the body of the pen, and which can be accessed by unscrewing the bottom of the pen. ...ed, its expansion causes a depression that causes the ink to flow into the body of the pen. The innovation created by this filling system consists of the p
    3 KB (440 parole) - 00:18, 5 set 2019
  • |body=
    959 byte (116 parole) - 21:43, 13 lug 2022
  • |body= |body=
    5 KB (643 parole) - 00:40, 20 ago 2022
  • ...that allowed alternating between two different pens contained in a single body, extracting either one and then the other.<ref>the idea of a double pen how ...e ​​in the body of the pen, and brought alternately inside and outside the body according to the direction in which you rotate the cap.
    6 KB (905 parole) - 02:03, 27 nov 2020
  • ...the nib is mounted on a mechanism that allows you to retract it inside the body of the pen. From this feature comes also the name of ''retractable'' with w ...verse to return the nib to the working position, making it come out of the body of the pen.
    5 KB (833 parole) - 11:01, 21 mag 2021
  • |body=
    1 KB (118 parole) - 22:21, 6 dic 2021

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