百樂按壓鋼珠筆專利

百樂按壓鋼珠筆專利
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# Update = 2020-06-01
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# Keywords: Pen, Rolling ball pen, Patent, ... .
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# Application ： G2.

# REF = 佐佐木和彥, 1999-12-01, 按鈕式筆具, CN1237130A, 株式會社百樂.

# IMAGE:

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