CA268498A - Appareil a projection optique - Google Patents

Appareil a projection optique

Info

Publication number
CA268498A
CA268498A CA268498A CA268498DA CA268498A CA 268498 A CA268498 A CA 268498A CA 268498 A CA268498 A CA 268498A CA 268498D A CA268498D A CA 268498DA CA 268498 A CA268498 A CA 268498A
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
CA268498A
Other languages
English (en)
Inventor
Graves Arnold
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 CA268498A publication Critical patent/CA268498A/fr
Expired legal-status Critical Current

Links

CA268498A Appareil a projection optique Expired CA268498A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA268498T

Publications (1)

Publication Number Publication Date
CA268498A true CA268498A (fr) 1927-02-22

Family

ID=35196452

Family Applications (1)

Application Number Title Priority Date Filing Date
CA268498A Expired CA268498A (fr) Appareil a projection optique

Country Status (1)

Country Link
CA (1) CA268498A (fr)

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