{TAIL ~ The use} of {HEAD ~ cryogen vapor} in the blowing gas hastens cooling and solidification of newly formed glass articles so that the time during which the articles must be retained in their molds is significantly reduced 
{ TAIL ~ The use } of { HEAD ~ cryogen vapor } in the blowing gas hastens cooling and solidification of newly formed glass articles so that the time during which the articles must be retained in their molds is significantly reduced
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