CA291102A - Ecran de projection d'images - Google Patents

Ecran de projection d'images

Info

Publication number
CA291102A
CA291102A CA291102A CA291102DA CA291102A CA 291102 A CA291102 A CA 291102A CA 291102 A CA291102 A CA 291102A CA 291102D A CA291102D A CA 291102DA CA 291102 A CA291102 A CA 291102A
Authority
CA
Canada
Prior art keywords
screen
picture projection
illuminated picture
illuminated
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
CA291102A
Other languages
English (en)
Inventor
Harper Martin
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
Application granted granted Critical
Publication of CA291102A publication Critical patent/CA291102A/fr
Expired legal-status Critical Current

Links

CA291102A Ecran de projection d'images Expired CA291102A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA291102T

Publications (1)

Publication Number Publication Date
CA291102A true CA291102A (fr) 1929-07-09

Family

ID=35227914

Family Applications (1)

Application Number Title Priority Date Filing Date
CA291102A Expired CA291102A (fr) Ecran de projection d'images

Country Status (1)

Country Link
CA (1) CA291102A (fr)

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