CA85920A - Foret a pierre - Google Patents

Foret a pierre

Info

Publication number
CA85920A
CA85920A CA85920DA CA85920A CA 85920 A CA85920 A CA 85920A CA 85920D A CA85920D A CA 85920DA CA 85920 A CA85920 A CA 85920A
Authority
CA
Canada
Prior art keywords
rock drill
drill
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
Other languages
English (en)
Inventor
Louis Prager
Charles Mead
Louis A. Schlesinger
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.)
M PRAGER Co
Original Assignee
M PRAGER Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by M PRAGER Co filed Critical M PRAGER Co
Application granted granted Critical
Publication of CA85920A publication Critical patent/CA85920A/fr
Expired legal-status Critical Current

Links

CA85920D 1903-04-06 1903-04-06 Foret a pierre Expired CA85920A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA85920T 1903-04-06

Publications (1)

Publication Number Publication Date
CA85920A true CA85920A (fr) 1904-03-08

Family

ID=45202456

Family Applications (1)

Application Number Title Priority Date Filing Date
CA85920D Expired CA85920A (fr) 1903-04-06 1903-04-06 Foret a pierre

Country Status (1)

Country Link
CA (1) CA85920A (fr)

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