CA542561A - Appareil de projection - Google Patents

Appareil de projection

Info

Publication number
CA542561A
CA542561A CA542561A CA542561DA CA542561A CA 542561 A CA542561 A CA 542561A CA 542561 A CA542561 A CA 542561A CA 542561D A CA542561D A CA 542561DA CA 542561 A CA542561 A CA 542561A
Authority
CA
Canada
Prior art keywords
projection equipment
projection
equipment
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
CA542561A
Other languages
English (en)
Inventor
B. Howell Thomas
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 CA542561A publication Critical patent/CA542561A/fr
Expired legal-status Critical Current

Links

CA542561A Appareil de projection Expired CA542561A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA542561T

Publications (1)

Publication Number Publication Date
CA542561A true CA542561A (fr) 1957-06-25

Family

ID=35699722

Family Applications (1)

Application Number Title Priority Date Filing Date
CA542561A Expired CA542561A (fr) Appareil de projection

Country Status (1)

Country Link
CA (1) CA542561A (fr)

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