CA291212A - Dispositif protecteur de perforatrice - Google Patents

Dispositif protecteur de perforatrice

Info

Publication number
CA291212A
CA291212A CA291212A CA291212DA CA291212A CA 291212 A CA291212 A CA 291212A CA 291212 A CA291212 A CA 291212A CA 291212D A CA291212D A CA 291212DA CA 291212 A CA291212 A CA 291212A
Authority
CA
Canada
Prior art keywords
protective device
drill protective
drill
protective
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
CA291212A
Other languages
English (en)
Inventor
Augustus Smith William
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.)
Ingersoll Rand Co
Original Assignee
Ingersoll Rand Co
Publication date
Application granted granted Critical
Publication of CA291212A publication Critical patent/CA291212A/fr
Expired legal-status Critical Current

Links

CA291212A Dispositif protecteur de perforatrice Expired CA291212A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA291212T

Publications (1)

Publication Number Publication Date
CA291212A true CA291212A (fr) 1929-07-09

Family

ID=35228024

Family Applications (1)

Application Number Title Priority Date Filing Date
CA291212A Expired CA291212A (fr) Dispositif protecteur de perforatrice

Country Status (1)

Country Link
CA (1) CA291212A (fr)

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