CA848715A - Projection screen - Google Patents

Projection screen

Info

Publication number
CA848715A
CA848715A CA848715A CA848715DA CA848715A CA 848715 A CA848715 A CA 848715A CA 848715 A CA848715 A CA 848715A CA 848715D A CA848715D A CA 848715DA CA 848715 A CA848715 A CA 848715A
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
CA848715A
Inventor
Hoffmann Zdenek
Pechar Jaroslav
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.)
Czech Academy of Sciences CAS
Original Assignee
Czech Academy of Sciences CAS
Publication date
Application granted granted Critical
Publication of CA848715A publication Critical patent/CA848715A/en
Expired legal-status Critical Current

Links

CA848715A Projection screen Expired CA848715A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA848715T

Publications (1)

Publication Number Publication Date
CA848715A true CA848715A (en) 1970-08-11

Family

ID=36332927

Family Applications (1)

Application Number Title Priority Date Filing Date
CA848715A Expired CA848715A (en) Projection screen

Country Status (1)

Country Link
CA (1) CA848715A (en)

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