CA318934A - Tete de perforatrice a roc - Google Patents

Tete de perforatrice a roc

Info

Publication number
CA318934A
CA318934A CA318934A CA318934DA CA318934A CA 318934 A CA318934 A CA 318934A CA 318934 A CA318934 A CA 318934A CA 318934D A CA318934D A CA 318934DA CA 318934 A CA318934 A CA 318934A
Authority
CA
Canada
Prior art keywords
rifle head
rock drills
drills
rock
rifle
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
CA318934A
Other languages
English (en)
Inventor
R. Hopland Raymond
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 CA318934A publication Critical patent/CA318934A/fr
Expired legal-status Critical Current

Links

CA318934A Tete de perforatrice a roc Expired CA318934A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA318934T

Publications (1)

Publication Number Publication Date
CA318934A true CA318934A (fr) 1932-01-12

Family

ID=35279489

Family Applications (1)

Application Number Title Priority Date Filing Date
CA318934A Expired CA318934A (fr) Tete de perforatrice a roc

Country Status (1)

Country Link
CA (1) CA318934A (fr)

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