Means for improving pneumatic punches and increasing the efficiency of driving boreholes

✍ Scribed by Kh. B. Tkach

• Publisher: Springer
• Year: 1995
• Tongue: English
• Weight: 724 KB
• Volume: 31
• Category: Article
• ISSN: 1573-8736
• DOI: 10.1007/bf02046891