CA448526A - Ecran portatif de projection - Google Patents

Ecran portatif de projection

Info

Publication number
CA448526A
CA448526A CA448526A CA448526DA CA448526A CA 448526 A CA448526 A CA 448526A CA 448526 A CA448526 A CA 448526A CA 448526D A CA448526D A CA 448526DA CA 448526 A CA448526 A CA 448526A
Authority
CA
Canada
Prior art keywords
projection screen
portable projection
portable
screen
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
CA448526A
Other languages
English (en)
Inventor
Leslie Stableford John
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 CA448526A publication Critical patent/CA448526A/fr
Expired legal-status Critical Current

Links

CA448526A Ecran portatif de projection Expired CA448526A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA448526T

Publications (1)

Publication Number Publication Date
CA448526A true CA448526A (fr) 1948-05-18

Family

ID=35566218

Family Applications (1)

Application Number Title Priority Date Filing Date
CA448526A Expired CA448526A (fr) Ecran portatif de projection

Country Status (1)

Country Link
CA (1) CA448526A (fr)

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