CA858485A - Mixed photochromic compound composition - Google Patents

Mixed photochromic compound composition

Info

Publication number
CA858485A
CA858485A CA858485A CA858485DA CA858485A CA 858485 A CA858485 A CA 858485A CA 858485 A CA858485 A CA 858485A CA 858485D A CA858485D A CA 858485DA CA 858485 A CA858485 A CA 858485A
Authority
CA
Canada
Prior art keywords
photochromic compound
compound composition
mixed photochromic
mixed
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
CA858485A
Inventor
J. Van Voorhis John
S. Pesa Henry
A. S. Van Voorhis Carol
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.)
National Cash Register Co
Original Assignee
National Cash Register Co
Publication date
Application granted granted Critical
Publication of CA858485A publication Critical patent/CA858485A/en
Expired legal-status Critical Current

Links

CA858485A Mixed photochromic compound composition Expired CA858485A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA858485T

Publications (1)

Publication Number Publication Date
CA858485A true CA858485A (en) 1970-12-15

Family

ID=36343958

Family Applications (1)

Application Number Title Priority Date Filing Date
CA858485A Expired CA858485A (en) Mixed photochromic compound composition

Country Status (1)

Country Link
CA (1) CA858485A (en)

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