CA521680A - Darkening metallic surfaces - Google Patents

Darkening metallic surfaces

Info

Publication number
CA521680A
CA521680A CA521680A CA521680DA CA521680A CA 521680 A CA521680 A CA 521680A CA 521680 A CA521680 A CA 521680A CA 521680D A CA521680D A CA 521680DA CA 521680 A CA521680 A CA 521680A
Authority
CA
Canada
Prior art keywords
darkening
metallic surfaces
metallic
darkening metallic
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
CA521680A
Other languages
French (fr)
Inventor
Heinecke William
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.)
GERTRUDE SEARS
Original Assignee
GERTRUDE SEARS
Publication date
Application granted granted Critical
Publication of CA521680A publication Critical patent/CA521680A/en
Expired legal-status Critical Current

Links

CA521680A Darkening metallic surfaces Expired CA521680A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA521680T

Publications (1)

Publication Number Publication Date
CA521680A true CA521680A (en) 1956-02-07

Family

ID=35674904

Family Applications (1)

Application Number Title Priority Date Filing Date
CA521680A Expired CA521680A (en) Darkening metallic surfaces

Country Status (1)

Country Link
CA (1) CA521680A (en)

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