CA18416A - Trepan - Google Patents

Trepan

Info

Publication number
CA18416A
CA18416A CA000018416A CA18416DA CA18416A CA 18416 A CA18416 A CA 18416A CA 000018416 A CA000018416 A CA 000018416A CA 18416D A CA18416D A CA 18416DA CA 18416 A CA18416 A CA 18416A
Authority
CA
Canada
Prior art keywords
boring bit
boring
bit
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
CA000018416A
Other languages
English (en)
Inventor
Edmund C. Bramhall
Biram E. Fuller
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 CA18416A publication Critical patent/CA18416A/fr
Expired legal-status Critical Current

Links

CA000018416A Trepan Expired CA18416A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA18416T

Publications (1)

Publication Number Publication Date
CA18416A true CA18416A (fr) 1884-01-14

Family

ID=45134959

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000018416A Expired CA18416A (fr) Trepan

Country Status (1)

Country Link
CA (1) CA18416A (fr)

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