CA404524A - Appareil a projections optiques - Google Patents

Appareil a projections optiques

Info

Publication number
CA404524A
CA404524A CA404524A CA404524DA CA404524A CA 404524 A CA404524 A CA 404524A CA 404524 A CA404524 A CA 404524A CA 404524D A CA404524D A CA 404524DA CA 404524 A CA404524 A CA 404524A
Authority
CA
Canada
Prior art keywords
projection apparatus
optical projection
optical
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
CA404524A
Other languages
English (en)
Inventor
Oswald Browne Cecil
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.)
Electrical and Musical Industries Ltd
Original Assignee
Electrical and Musical Industries Ltd
Publication date
Application granted granted Critical
Publication of CA404524A publication Critical patent/CA404524A/fr
Expired legal-status Critical Current

Links

CA404524A Appareil a projections optiques Expired CA404524A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA404524T

Publications (1)

Publication Number Publication Date
CA404524A true CA404524A (fr) 1942-05-05

Family

ID=35415822

Family Applications (1)

Application Number Title Priority Date Filing Date
CA404524A Expired CA404524A (fr) Appareil a projections optiques

Country Status (1)

Country Link
CA (1) CA404524A (fr)

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