AU231481B2 - Rock drill construction - Google Patents

Rock drill construction

Info

Publication number
AU231481B2
AU231481B2 AU50143/59A AU5014359A AU231481B2 AU 231481 B2 AU231481 B2 AU 231481B2 AU 50143/59 A AU50143/59 A AU 50143/59A AU 5014359 A AU5014359 A AU 5014359A AU 231481 B2 AU231481 B2 AU 231481B2
Authority
AU
Australia
Prior art keywords
rock drill
drill construction
construction
rock
drill
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
AU50143/59A
Other versions
AU5014359A (en
Inventor
John Hodos and George Louis Alston Edward
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
MSA Safety Inc
Original Assignee
Mine Safety Appliances Co
Filing date
Publication date
Application filed by Mine Safety Appliances Co filed Critical Mine Safety Appliances Co
Application granted granted Critical
Publication of AU231481B2 publication Critical patent/AU231481B2/en
Publication of AU5014359A publication Critical patent/AU5014359A/en
Expired legal-status Critical Current

Links

AU50143/59A 1959-06-24 Rock drill construction Expired AU231481B2 (en)

Publications (2)

Publication Number Publication Date
AU231481B2 true AU231481B2 (en) 1959-12-24
AU5014359A AU5014359A (en) 1959-12-24

Family

ID=

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