CA291788A - Sand pipe for rock drills - Google Patents

Sand pipe for rock drills

Info

Publication number
CA291788A
CA291788A CA291788A CA291788DA CA291788A CA 291788 A CA291788 A CA 291788A CA 291788 A CA291788 A CA 291788A CA 291788D A CA291788D A CA 291788DA CA 291788 A CA291788 A CA 291788A
Authority
CA
Canada
Prior art keywords
sand pipe
rock drills
drills
rock
sand
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
CA291788A
Other languages
French (fr)
Inventor
Christopher Hansen Charles
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.)
Ingersoll Rand Co
Original Assignee
Ingersoll Rand Co
Publication date
Application granted granted Critical
Publication of CA291788A publication Critical patent/CA291788A/en
Expired legal-status Critical Current

Links

CA291788A Sand pipe for rock drills Expired CA291788A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA291788T

Publications (1)

Publication Number Publication Date
CA291788A true CA291788A (en) 1929-07-30

Family

ID=35228600

Family Applications (1)

Application Number Title Priority Date Filing Date
CA291788A Expired CA291788A (en) Sand pipe for rock drills

Country Status (1)

Country Link
CA (1) CA291788A (en)

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