CA217735A - Methode et appareil a graver - Google Patents

Methode et appareil a graver

Info

Publication number
CA217735A
CA217735A CA217735A CA217735DA CA217735A CA 217735 A CA217735 A CA 217735A CA 217735 A CA217735 A CA 217735A CA 217735D A CA217735D A CA 217735DA CA 217735 A CA217735 A CA 217735A
Authority
CA
Canada
Prior art keywords
engraving method
engraving
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
CA217735A
Other languages
English (en)
Inventor
Maurice Edmunds Howard
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 CA217735A publication Critical patent/CA217735A/fr
Expired legal-status Critical Current

Links

CA217735A Methode et appareil a graver Expired CA217735A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA217735T

Publications (1)

Publication Number Publication Date
CA217735A true CA217735A (fr) 1922-04-18

Family

ID=35112179

Family Applications (1)

Application Number Title Priority Date Filing Date
CA217735A Expired CA217735A (fr) Methode et appareil a graver

Country Status (1)

Country Link
CA (1) CA217735A (fr)

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