CA419808A - Ecran de projection - Google Patents

Ecran de projection

Info

Publication number
CA419808A
CA419808A CA419808A CA419808DA CA419808A CA 419808 A CA419808 A CA 419808A CA 419808 A CA419808 A CA 419808A CA 419808D A CA419808D A CA 419808DA CA 419808 A CA419808 A CA 419808A
Authority
CA
Canada
Prior art keywords
projection screen
projection
screen
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
CA419808A
Other languages
English (en)
Inventor
M. Macneille Stephen
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.)
Canadian Kodak Co Ltd
Original Assignee
Canadian Kodak Co Ltd
Publication date
Application granted granted Critical
Publication of CA419808A publication Critical patent/CA419808A/fr
Expired legal-status Critical Current

Links

CA419808A Ecran de projection Expired CA419808A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA419808T

Publications (1)

Publication Number Publication Date
CA419808A true CA419808A (fr) 1944-04-25

Family

ID=35529101

Family Applications (1)

Application Number Title Priority Date Filing Date
CA419808A Expired CA419808A (fr) Ecran de projection

Country Status (1)

Country Link
CA (1) CA419808A (fr)

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