CA229163A - Mandrin contre poussiere de foret a roc - Google Patents

Mandrin contre poussiere de foret a roc

Info

Publication number
CA229163A
CA229163A CA229163A CA229163DA CA229163A CA 229163 A CA229163 A CA 229163A CA 229163 A CA229163 A CA 229163A CA 229163D A CA229163D A CA 229163DA CA 229163 A CA229163 A CA 229163A
Authority
CA
Canada
Prior art keywords
chuck
preventing dust
rock drills
drills
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
CA229163A
Other languages
English (en)
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 CA229163A publication Critical patent/CA229163A/fr
Expired legal-status Critical Current

Links

CA229163A Mandrin contre poussiere de foret a roc Expired CA229163A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA229163T

Publications (1)

Publication Number Publication Date
CA229163A true CA229163A (fr) 1923-02-27

Family

ID=35126536

Family Applications (1)

Application Number Title Priority Date Filing Date
CA229163A Expired CA229163A (fr) Mandrin contre poussiere de foret a roc

Country Status (1)

Country Link
CA (1) CA229163A (fr)

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