CA19354S - Surround for optical projection screens - Google Patents

Surround for optical projection screens

Info

Publication number
CA19354S
CA19354S CA19354F CA19354F CA19354S CA 19354 S CA19354 S CA 19354S CA 19354 F CA19354 F CA 19354F CA 19354 F CA19354 F CA 19354F CA 19354 S CA19354 S CA 19354S
Authority
CA
Canada
Prior art keywords
surround
optical projection
projection screens
screens
optical
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
CA19354F
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.)
Individual
Original Assignee
Individual
Publication date
Priority to CA19354F priority Critical patent/CA19354S/en
Application granted granted Critical
Publication of CA19354S publication Critical patent/CA19354S/en
Expired legal-status Critical Current

Links

CA19354F Surround for optical projection screens Expired CA19354S (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA19354F CA19354S (en) Surround for optical projection screens

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA19354F CA19354S (en) Surround for optical projection screens

Publications (1)

Publication Number Publication Date
CA19354S true CA19354S (en) 1953-10-19

Family

ID=55964336

Family Applications (1)

Application Number Title Priority Date Filing Date
CA19354F Expired CA19354S (en) Surround for optical projection screens

Country Status (1)

Country Link
CA (1) CA19354S (en)

Similar Documents

Publication Publication Date Title
CA19354S (en) Surround for optical projection screens
AU166937B2 (en) Improvements relating to projection screens
CA497302A (en) Removable screens for spectacles
FR1075742A (en) Stereoscopic projector
AU163913B2 (en) Television projection apparatus
FR1082795A (en) projection screen
CA492971A (en) Light projectors
CA493216A (en) Horizontal reference
AU2297453A (en) Improvements relating to projection screens
AU159460B2 (en) Apparatus for stereoscopic projection
CA504452A (en) Projection screen
AU164994B2 (en) Incandescent screen for projection tube
FR1089957A (en) Improvements to screens for stereoscopic projection
AU2116353A (en) Television projection apparatus
CA491162A (en) Optical apparatus
CA496199A (en) Photosensitive apparatus
CA495601A (en) Photosensitive apparatus
CA492090A (en) Photographic apparatus
CA492283A (en) Photographic apparatus
AT190388B (en) Deflecting mirror for projector
CA508482A (en) Projection apparatus
CA508483A (en) Projection apparatus
IE21696L (en) Projection screens
AU1785653A (en) Apparatus for stereoscopic projection
CA489882A (en) Projection system