AU1698820B - Improvements in and relating to projection apparatus applicable particularly to optical projection lanterns, cinematograph projectors, and the like - Google Patents

Improvements in and relating to projection apparatus applicable particularly to optical projection lanterns, cinematograph projectors, and the like

Info

Publication number
AU1698820B
AU1698820B AU16988/20A AU1698820A AU1698820B AU 1698820 B AU1698820 B AU 1698820B AU 16988/20 A AU16988/20 A AU 16988/20A AU 1698820 A AU1698820 A AU 1698820A AU 1698820 B AU1698820 B AU 1698820B
Authority
AU
Australia
Prior art keywords
relating
lanterns
projection
apparatus applicable
applicable particularly
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
AU16988/20A
Other versions
AU1698820A (en
Inventor
Hon Edward Correll Pi
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
Priority to AU16988/20A priority Critical patent/AU1698820A/en
Priority claimed from AU16988/20A external-priority patent/AU1698820A/en
Publication of AU1698820B publication Critical patent/AU1698820B/en
Publication of AU1698820A publication Critical patent/AU1698820A/en
Expired legal-status Critical Current

Links

AU16988/20A 1920-07-30 Improvements in and relating to projection apparatus applicable particularly to optical projection lanterns, cinematograph projectors, and the like Expired AU1698820A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU16988/20A AU1698820A (en) 1920-07-30 Improvements in and relating to projection apparatus applicable particularly to optical projection lanterns, cinematograph projectors, and the like

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AU16988/20A AU1698820A (en) 1920-07-30 Improvements in and relating to projection apparatus applicable particularly to optical projection lanterns, cinematograph projectors, and the like

Publications (2)

Publication Number Publication Date
AU1698820B true AU1698820B (en) 1921-12-13
AU1698820A AU1698820A (en) 1921-12-13

Family

ID=

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