J-GLOBAL ID:201602002244285589   Reference number:58A0047092

New Travelers Run 19.5 Days Longer.

新しい型のトラベラは19.5 日も使える(がつてのトラベラは24時閻に2箇消費したが,今や4週間も使用てきる)
Volume: 122  Issue:Page: 53  Publication year: 1958 
JST Material Number: E0240A  ISSN: 0040-4985  CODEN: TINDA   Document type: Article
Country of issue: United States (USA) 
Terms in the title (4):
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