Airflow efficacy of ballpoint pen tubes: a consideration for use in bystander cricothyrotomy. "OBJECTIVE:To examine the suitability of commonly available ballpoint pens as a substitute emergency ...
SHELTON, Conn. The BIC Cristal ball pen was first introduced to the American consumer in 1959 and cost 19 cents a pen. Despite an inflation rate of 622% since that time, the price of the pen has never ...
China has finally produced its own fully home-produced ballpoint pen after years of trying to master the complex techniques involved in making the delicate tips. Despite manufacturing 80% of the world ...
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