CA220276A - Rock drill - Google Patents

Rock drill

Info

Publication number
CA220276A
CA220276A CA220276A CA220276DA CA220276A CA 220276 A CA220276 A CA 220276A CA 220276 A CA220276 A CA 220276A CA 220276D A CA220276D A CA 220276DA CA 220276 A CA220276 A CA 220276A
Authority
CA
Canada
Prior art keywords
rock drill
drill
rock
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
CA220276A
Other languages
French (fr)
Inventor
Henry Swicher William
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.)
Individual
Original Assignee
Individual
Publication date
Application granted granted Critical
Publication of CA220276A publication Critical patent/CA220276A/en
Expired legal-status Critical Current

Links

CA220276A Rock drill Expired CA220276A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA220276T

Publications (1)

Publication Number Publication Date
CA220276A true CA220276A (en) 1922-06-27

Family

ID=35114720

Family Applications (1)

Application Number Title Priority Date Filing Date
CA220276A Expired CA220276A (en) Rock drill

Country Status (1)

Country Link
CA (1) CA220276A (en)

Similar Documents

Publication Publication Date Title
CA220276A (en) Rock drill
CA224470A (en) Drill bit
CA226962A (en) Drilling rig
CA217967A (en) Well drilling rig
CA221358A (en) Drill
CA224080A (en) Rock drilling apparatus
CA228934A (en) Rock drill
CA211703A (en) Rock drill
CA236763A (en) Rock drill
CA221357A (en) Hand drill
CA247936A (en) Rock drill
CA248874A (en) Rock drill
CA256217A (en) Rock drill
CA256691A (en) Rock drill
CA215221A (en) Taper drill
CA216350A (en) Mounting for rock drills
CA239765A (en) Gasoline rock drill
CA239991A (en) Subaqueous drill
CA217881A (en) Well boring tool
CA233675A (en) Gasoline rock drill
CA215329A (en) Well drilling machine
CA226987A (en) Well drilling machine
CA221729A (en) Square hole drill
CA222453A (en) Boring tool
CA226700A (en) Boring tool