MECHANICAL PENCIL
KAJIWARA TAKUMI, SERI SHINICHI, SANADA HIROAKI, KAWARASAKI YUJI, ONISHI TOMOATSU
Year of Publication 07.01.2021
Get full text
Year of Publication 07.01.2021
Patent
MECHANICAL PENCIL
KAJIWARA TAKUMI, SERI SHINICHI, SANADA HIROAKI, KAWARASAKI YUJI, ONISHI TOMOATSU
Year of Publication 07.01.2021
Get full text
Year of Publication 07.01.2021
Patent
AUTOMATICALLY FEEDING TYPE MECHANICAL PENCIL
KAJIWARA TAKUMI, SERI SHINICHI, SANADA HIROAKI, KAWARASAKI YUJI, ONISHI TOMOATSU
Year of Publication 09.07.2020
Get full text
Year of Publication 09.07.2020
Patent