CA137547A - Ecran a projections - Google Patents

Ecran a projections

Info

Publication number
CA137547A
CA137547A CA000137547A CA137547DA CA137547A CA 137547 A CA137547 A CA 137547A CA 000137547 A CA000137547 A CA 000137547A CA 137547D A CA137547D A CA 137547DA CA 137547 A CA137547 A CA 137547A
Authority
CA
Canada
Prior art keywords
projection screen
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
CA000137547A
Other languages
English (en)
Inventor
Oswald Buechner
Hans Buol
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
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of CA137547A publication Critical patent/CA137547A/fr
Expired legal-status Critical Current

Links

CA000137547A 1910-07-14 1910-07-14 Ecran a projections Expired CA137547A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA137547T 1910-07-14

Publications (1)

Publication Number Publication Date
CA137547A true CA137547A (fr) 1911-12-26

Family

ID=45257263

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000137547A Expired CA137547A (fr) 1910-07-14 1910-07-14 Ecran a projections

Country Status (1)

Country Link
CA (1) CA137547A (fr)

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