CA492754A - Light filters - Google Patents

Light filters

Info

Publication number
CA492754A
CA492754A CA492754A CA492754DA CA492754A CA 492754 A CA492754 A CA 492754A CA 492754 A CA492754 A CA 492754A CA 492754D A CA492754D A CA 492754DA CA 492754 A CA492754 A CA 492754A
Authority
CA
Canada
Prior art keywords
light filters
filters
light
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
CA492754A
Other languages
French (fr)
Inventor
L. M. A. Rouy Auguste
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 CA492754A publication Critical patent/CA492754A/en
Expired legal-status Critical Current

Links

CA492754A Light filters Expired CA492754A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA492754T

Publications (1)

Publication Number Publication Date
CA492754A true CA492754A (en) 1953-05-12

Family

ID=35638132

Family Applications (1)

Application Number Title Priority Date Filing Date
CA492754A Expired CA492754A (en) Light filters

Country Status (1)

Country Link
CA (1) CA492754A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3125684A (en) * 1964-03-17 Attys

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3125684A (en) * 1964-03-17 Attys

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