CA401172A - Dispositif de commande de perforatrice a roc - Google Patents

Dispositif de commande de perforatrice a roc

Info

Publication number
CA401172A
CA401172A CA401172A CA401172DA CA401172A CA 401172 A CA401172 A CA 401172A CA 401172 A CA401172 A CA 401172A CA 401172D A CA401172D A CA 401172DA CA 401172 A CA401172 A CA 401172A
Authority
CA
Canada
Prior art keywords
controlling device
rock drill
drill controlling
rock
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
CA401172A
Other languages
English (en)
Inventor
Mortimer Slater Fred
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 CA401172A publication Critical patent/CA401172A/fr
Expired legal-status Critical Current

Links

CA401172A Dispositif de commande de perforatrice a roc Expired CA401172A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA401172T

Publications (1)

Publication Number Publication Date
CA401172A true CA401172A (fr) 1941-12-02

Family

ID=35411618

Family Applications (1)

Application Number Title Priority Date Filing Date
CA401172A Expired CA401172A (fr) Dispositif de commande de perforatrice a roc

Country Status (1)

Country Link
CA (1) CA401172A (fr)

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