CA441039A - Light filter - Google Patents

Light filter

Info

Publication number
CA441039A
CA441039A CA441039A CA441039DA CA441039A CA 441039 A CA441039 A CA 441039A CA 441039 A CA441039 A CA 441039A CA 441039D A CA441039D A CA 441039DA CA 441039 A CA441039 A CA 441039A
Authority
CA
Canada
Prior art keywords
light filter
filter
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
CA441039A
Other languages
French (fr)
Inventor
Lemmers Eugene
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.)
General Electric Canada Co
Original Assignee
Canadian General Electric Co Ltd
Publication date
Application granted granted Critical
Publication of CA441039A publication Critical patent/CA441039A/en
Expired legal-status Critical Current

Links

CA441039A Light filter Expired CA441039A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA441039T

Publications (1)

Publication Number Publication Date
CA441039A true CA441039A (en) 1947-04-29

Family

ID=35556271

Family Applications (1)

Application Number Title Priority Date Filing Date
CA441039A Expired CA441039A (en) Light filter

Country Status (1)

Country Link
CA (1) CA441039A (en)

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