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
AU1698820BAU16988/20AAU1698820AAU1698820BAU 1698820 BAU1698820 BAU 1698820BAU 16988/20 AAU16988/20 AAU 16988/20AAU 1698820 AAU1698820 AAU 1698820AAU 1698820 BAU1698820 BAU 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.)
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
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Filing date
Publication date
Application filed by IndividualfiledCriticalIndividual
Priority to AU16988/20ApriorityCriticalpatent/AU1698820A/en
Priority claimed from AU16988/20Aexternal-prioritypatent/AU1698820A/en
Publication of AU1698820BpublicationCriticalpatent/AU1698820B/en
Publication of AU1698820ApublicationCriticalpatent/AU1698820A/en
AU16988/20A1920-07-30Improvements in and relating to projection apparatus applicable particularly to optical projection lanterns, cinematograph projectors, and the like
ExpiredAU1698820A
(en)