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CA469573A - Ecrans de projection arriere - Google Patents

Ecrans de projection arriere

Info

Publication number
CA469573A
CA469573A CA469573A CA469573DA CA469573A CA 469573 A CA469573 A CA 469573A CA 469573 A CA469573 A CA 469573A CA 469573D A CA469573D A CA 469573DA CA 469573 A CA469573 A CA 469573A
Authority
CA
Canada
Prior art keywords
projection screens
screens
projection
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
CA469573A
Other languages
English (en)
Inventor
Washburn Kellogg Edward
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.)
RCA Corp
Original Assignee
Radio Corporation of America
Publication date
Application granted granted Critical
Publication of CA469573A publication Critical patent/CA469573A/fr
Expired legal-status Critical Current

Links

CA469573A Ecrans de projection arriere Expired CA469573A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA469573T

Publications (1)

Publication Number Publication Date
CA469573A true CA469573A (fr) 1950-11-21

Family

ID=35603511

Family Applications (1)

Application Number Title Priority Date Filing Date
CA469573A Expired CA469573A (fr) Ecrans de projection arriere

Country Status (1)

Country Link
CA (1) CA469573A (fr)

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