CA512574A - Rotary percussion drill - Google Patents

Rotary percussion drill

Info

Publication number
CA512574A
CA512574A CA512574A CA512574DA CA512574A CA 512574 A CA512574 A CA 512574A CA 512574 A CA512574 A CA 512574A CA 512574D A CA512574D A CA 512574DA CA 512574 A CA512574 A CA 512574A
Authority
CA
Canada
Prior art keywords
percussion drill
rotary percussion
rotary
drill
percussion
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
CA512574A
Other languages
French (fr)
Inventor
H. Holsing Robert
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.)
Timken Co
Original Assignee
Timken Roller Bearing Co
Publication date
Application granted granted Critical
Publication of CA512574A publication Critical patent/CA512574A/en
Expired legal-status Critical Current

Links

CA512574A Rotary percussion drill Expired CA512574A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA512574T

Publications (1)

Publication Number Publication Date
CA512574A true CA512574A (en) 1955-05-03

Family

ID=35663649

Family Applications (1)

Application Number Title Priority Date Filing Date
CA512574A Expired CA512574A (en) Rotary percussion drill

Country Status (1)

Country Link
CA (1) CA512574A (en)

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