CA416931A - Appareil de perceuse - Google Patents

Appareil de perceuse

Info

Publication number
CA416931A
CA416931A CA416931A CA416931DA CA416931A CA 416931 A CA416931 A CA 416931A CA 416931 A CA416931 A CA 416931A CA 416931D A CA416931D A CA 416931DA CA 416931 A CA416931 A CA 416931A
Authority
CA
Canada
Prior art keywords
drilling apparatus
drilling
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
CA416931A
Other languages
English (en)
Inventor
J. Bowan Walter
H. Mueller Frank
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 CA416931A publication Critical patent/CA416931A/fr
Expired legal-status Critical Current

Links

CA416931A Appareil de perceuse Expired CA416931A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA416931T

Publications (1)

Publication Number Publication Date
CA416931A true CA416931A (fr) 1943-12-07

Family

ID=35526165

Family Applications (1)

Application Number Title Priority Date Filing Date
CA416931A Expired CA416931A (fr) Appareil de perceuse

Country Status (1)

Country Link
CA (1) CA416931A (fr)

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