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
GB2910919A
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.)
NORMAN EDGAR BARBER
Original Assignee
NORMAN EDGAR BARBER
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 NORMAN EDGAR BARBERfiledCriticalNORMAN EDGAR BARBER
Priority to GB2910919ApriorityCriticalpatent/GB161616A/en
Publication of GB161616ApublicationCriticalpatent/GB161616A/en
G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
G03B21/00—Projectors or projection-type viewers; Accessories therefor
G03B21/14—Details
G03B21/20—Lamp housings
Landscapes
Physics & Mathematics
(AREA)
General Physics & Mathematics
(AREA)
GB2910919A1920-08-231920-08-23Improvements in kinematograph projection apparatus
ExpiredGB161616A
(en)