CA822415A - Projection screen construction - Google Patents

Projection screen construction

Info

Publication number
CA822415A
CA822415A CA822415A CA822415DA CA822415A CA 822415 A CA822415 A CA 822415A CA 822415 A CA822415 A CA 822415A CA 822415D A CA822415D A CA 822415DA CA 822415 A CA822415 A CA 822415A
Authority
CA
Canada
Prior art keywords
projection screen
screen construction
construction
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
CA822415A
Inventor
J. Quackenbush John
O. Corbett Herbert
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.)
Millennium Petrochemicals Inc
Original Assignee
National Destillers and Chemical Corp
Publication date
Application granted granted Critical
Publication of CA822415A publication Critical patent/CA822415A/en
Expired legal-status Critical Current

Links

CA822415A Projection screen construction Expired CA822415A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA822415T

Publications (1)

Publication Number Publication Date
CA822415A true CA822415A (en) 1969-09-09

Family

ID=36299825

Family Applications (1)

Application Number Title Priority Date Filing Date
CA822415A Expired CA822415A (en) Projection screen construction

Country Status (1)

Country Link
CA (1) CA822415A (en)

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