CA221836A - Machine a graver - Google Patents

Machine a graver

Info

Publication number
CA221836A
CA221836A CA221836A CA221836DA CA221836A CA 221836 A CA221836 A CA 221836A CA 221836 A CA221836 A CA 221836A CA 221836D A CA221836D A CA 221836DA CA 221836 A CA221836 A CA 221836A
Authority
CA
Canada
Prior art keywords
etching machine
etching
machine
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
CA221836A
Other languages
English (en)
Inventor
Gustave Schwuchow Edward
Florence Johnston George
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 CA221836A publication Critical patent/CA221836A/fr
Expired legal-status Critical Current

Links

CA221836A Machine a graver Expired CA221836A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA221836T

Publications (1)

Publication Number Publication Date
CA221836A true CA221836A (fr) 1922-08-08

Family

ID=35117438

Family Applications (1)

Application Number Title Priority Date Filing Date
CA221836A Expired CA221836A (fr) Machine a graver

Country Status (1)

Country Link
CA (1) CA221836A (fr)

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