Art
J-GLOBAL ID:201602004411061011   Reference number:58A0053331

Detector Alarm System Prevents Damage in Pole-Hole Digging.

電柱穴堀機用の地下埋造物検出警報装置
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Material:
Volume: 62  Issue:Page: 45,48  Publication year: 1958
JST Material Number: H0525A  ISSN: 0040-263X  Document type: Article
Country of issue: United States (USA) 
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