CH504019A - Projektionseinrichtung und Verfahren zu ihrem Betrieb
- Google Patents
Projektionseinrichtung und Verfahren zu ihrem Betrieb
Info
Publication number
CH504019A
CH504019ACH1301969ACH1301969ACH504019ACH 504019 ACH504019 ACH 504019ACH 1301969 ACH1301969 ACH 1301969ACH 1301969 ACH1301969 ACH 1301969ACH 504019 ACH504019 ACH 504019A
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 Arch Balla Peter DiplfiledCriticalArch Balla Peter Dipl
Priority to CH1301969ApriorityCriticalpatent/CH504019A/de
Priority to DE7029468Uprioritypatent/DE7029468U/de
Publication of CH504019ApublicationCriticalpatent/CH504019A/de
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
G03B21/001—Slide projectors
Landscapes
Physics & Mathematics
(AREA)
General Physics & Mathematics
(AREA)
Projection Apparatus
(AREA)
Lenses
(AREA)
CH1301969A1969-08-251969-08-25Projektionseinrichtung und Verfahren zu ihrem Betrieb
CH504019A
(de)