CA257399A - Tete de foreuse - Google Patents

Tete de foreuse

Info

Publication number
CA257399A
CA257399A CA257399A CA257399DA CA257399A CA 257399 A CA257399 A CA 257399A CA 257399 A CA257399 A CA 257399A CA 257399D A CA257399D A CA 257399DA CA 257399 A CA257399 A CA 257399A
Authority
CA
Canada
Prior art keywords
drill head
drill
head
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
CA257399A
Other languages
English (en)
Inventor
E. Williams Alfred
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 CA257399A publication Critical patent/CA257399A/fr
Expired legal-status Critical Current

Links

CA257399A Tete de foreuse Expired CA257399A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA257399T

Publications (1)

Publication Number Publication Date
CA257399A true CA257399A (fr) 1926-01-19

Family

ID=35165947

Family Applications (1)

Application Number Title Priority Date Filing Date
CA257399A Expired CA257399A (fr) Tete de foreuse

Country Status (1)

Country Link
CA (1) CA257399A (fr)

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