CA390683A - Composition a graver - Google Patents

Composition a graver

Info

Publication number
CA390683A
CA390683A CA390683A CA390683DA CA390683A CA 390683 A CA390683 A CA 390683A CA 390683 A CA390683 A CA 390683A CA 390683D A CA390683D A CA 390683DA CA 390683 A CA390683 A CA 390683A
Authority
CA
Canada
Prior art keywords
etching composition
etching
composition
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
CA390683A
Other languages
English (en)
Inventor
B. Alnutt Donald
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.)
Mallinckrodt Chemical Works
Original Assignee
Mallinckrodt Chemical Works
Publication date
Application granted granted Critical
Publication of CA390683A publication Critical patent/CA390683A/fr
Expired legal-status Critical Current

Links

CA390683A Composition a graver Expired CA390683A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA390683T

Publications (1)

Publication Number Publication Date
CA390683A true CA390683A (fr) 1940-08-13

Family

ID=35398254

Family Applications (1)

Application Number Title Priority Date Filing Date
CA390683A Expired CA390683A (fr) Composition a graver

Country Status (1)

Country Link
CA (1) CA390683A (fr)

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