CA170923A - Dispositif a forer ou a percer - Google Patents

Dispositif a forer ou a percer

Info

Publication number
CA170923A
CA170923A CA000170923A CA170923DA CA170923A CA 170923 A CA170923 A CA 170923A CA 000170923 A CA000170923 A CA 000170923A CA 170923D A CA170923D A CA 170923DA CA 170923 A CA170923 A CA 170923A
Authority
CA
Canada
Prior art keywords
drilling
boring device
boring
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
CA000170923A
Other languages
English (en)
Inventor
Harry James Watts
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
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 Individual filed Critical Individual
Application granted granted Critical
Publication of CA170923A publication Critical patent/CA170923A/fr
Expired legal-status Critical Current

Links

CA000170923A 1916-03-09 1916-03-09 Dispositif a forer ou a percer Expired CA170923A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA170923T 1916-03-09

Publications (1)

Publication Number Publication Date
CA170923A true CA170923A (fr) 1916-07-18

Family

ID=45290585

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000170923A Expired CA170923A (fr) 1916-03-09 1916-03-09 Dispositif a forer ou a percer

Country Status (1)

Country Link
CA (1) CA170923A (fr)

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