GB840960A
(en )
1960-07-13
Writing implement
GB191003956A
(enrdf_load_stackoverflow )
GB784388A
(en )
1957-10-09
Improvements in fountain pens
FR2900868B1
(fr )
2011-02-11
Instrument d'ecriture presentant une pointe d'ecriture capillaire
GB688839A
(en )
1953-03-18
Improvements relating to ball-pointed reservoir pens
GB688891A
(en )
1953-03-18
Improvements in and relating to reservoir writing instruments
GB573747A
(en )
1945-12-04
Writing instrument
GB685706A
(en )
1953-01-07
Improvements in and relating to ball point pens
GB1088255A
(en )
1967-10-25
Drafting pen
GB712987A
(en )
1954-08-04
Improvements in or relating to writing members for reservoir writing instruments
GB978490A
(enrdf_load_stackoverflow )
GB695862A
(en )
1953-08-19
Means for arresting ink flow from vented reservoirs of ball tip writing instruments
GB190118583A
(en )
1902-09-17
Improvements in Stylographic and Fountain Pens.
US1340926A
(en )
1920-05-25
Stylographic fountain-pen
CN211684322U
(zh )
2020-10-16
防断墨马克笔
GB732982A
(en )
1955-07-06
A fountain pen
GB1293114A
(en )
1972-10-18
Dual-tip fountain pens
GB795902A
(en )
1958-06-04
Improvements in fountain pens
GB647474A
(en )
1950-12-13
Fountain pens
GB732463A
(en )
1955-06-22
Fountain pen
GB189724146A
(en )
1898-08-13
An Improved Fountain Pen.
GB878117A
(en )
1961-09-27
Improvements in or relating to fountain pens
GB695357A
(en )
1953-08-12
Improvements in reservoir writing instruments
GB1007424A
(en )
1965-10-13
Fountain pens
GB1159265A
(en )
1969-07-23
Improvements in and relating to Writing Instruments