CA237975A - Multiple drilling and grinding apparatus - Google Patents

Multiple drilling and grinding apparatus

Info

Publication number
CA237975A
CA237975A CA237975A CA237975DA CA237975A CA 237975 A CA237975 A CA 237975A CA 237975 A CA237975 A CA 237975A CA 237975D A CA237975D A CA 237975DA CA 237975 A CA237975 A CA 237975A
Authority
CA
Canada
Prior art keywords
grinding apparatus
multiple drilling
drilling
grinding
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
CA237975A
Other languages
French (fr)
Inventor
Hey George
George Matravers Frederick
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 CA237975A publication Critical patent/CA237975A/en
Expired legal-status Critical Current

Links

CA237975A Multiple drilling and grinding apparatus Expired CA237975A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA237975T

Publications (1)

Publication Number Publication Date
CA237975A true CA237975A (en) 1924-02-26

Family

ID=35142007

Family Applications (1)

Application Number Title Priority Date Filing Date
CA237975A Expired CA237975A (en) Multiple drilling and grinding apparatus

Country Status (1)

Country Link
CA (1) CA237975A (en)

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