Patent Application Improvements in or relating to rock drilling and like borin and Appanatins

Keywords	DePENNING Halifax Tool Co. drill tubes flushing fluid tube compressed air rock drilling apparatus
Ministry/ Department/ Residency	PATENTS AND DESIGNS KOLKATA
Branch	Kolkata
From Year / Date (YYYY-MM-DD)	1961
To Year / Date (YYYY-MM-DD)	1961
Identifier	NAIBHF00004850
File No./Reference No./Sheet No./Folio No.	77516
Location	BBSR-R1
File Size	61.0 MB
Pages	36
Language	English
Bundle Barcode	NAIBHB00000243
File Barcode	NAIBHF00004850
QC Certificate No.	QC_20240627BH
Bundle No.	51