CA512943A - Appareil a percer - Google Patents

Appareil a percer

Info

Publication number
CA512943A
CA512943A CA512943A CA512943DA CA512943A CA 512943 A CA512943 A CA 512943A CA 512943 A CA512943 A CA 512943A CA 512943D A CA512943D A CA 512943DA CA 512943 A CA512943 A CA 512943A
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
CA512943A
Other languages
English (en)
Inventor
A. Mccallum Robert
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.)
Joy Manufacturing Co
Original Assignee
Joy Manufacturing Co
Publication date
Application granted granted Critical
Publication of CA512943A publication Critical patent/CA512943A/fr
Expired legal-status Critical Current

Links

CA512943A Appareil a percer Expired CA512943A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA512943T

Publications (1)

Publication Number Publication Date
CA512943A true CA512943A (fr) 1955-05-17

Family

ID=35664019

Family Applications (1)

Application Number Title Priority Date Filing Date
CA512943A Expired CA512943A (fr) Appareil a percer

Country Status (1)

Country Link
CA (1) CA512943A (fr)

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