CA658846A - Dust collecting rotary rock drill - Google Patents

Dust collecting rotary rock drill

Info

Publication number
CA658846A
CA658846A CA658846A CA658846DA CA658846A CA 658846 A CA658846 A CA 658846A CA 658846 A CA658846 A CA 658846A CA 658846D A CA658846D A CA 658846DA CA 658846 A CA658846 A CA 658846A
Authority
CA
Canada
Prior art keywords
dust collecting
rock drill
rotary rock
collecting rotary
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
CA658846A
Inventor
J. Hohos Edward
L. Alston George
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
Publication date
Application granted granted Critical
Publication of CA658846A publication Critical patent/CA658846A/en
Expired legal-status Critical Current

Links

CA658846A Dust collecting rotary rock drill Expired CA658846A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA658846T

Publications (1)

Publication Number Publication Date
CA658846A true CA658846A (en) 1963-03-05

Family

ID=35952194

Family Applications (1)

Application Number Title Priority Date Filing Date
CA658846A Expired CA658846A (en) Dust collecting rotary rock drill

Country Status (1)

Country Link
CA (1) CA658846A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3613807A (en) * 1969-08-14 1971-10-19 Alex J Galis Drill rod with dust-collecting means

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3613807A (en) * 1969-08-14 1971-10-19 Alex J Galis Drill rod with dust-collecting means

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