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Application filed by Ing. Hans Deckel Dr., Ing. Friedrich Wilhelm Deckel Dipl.filedCriticalIng. Hans Deckel Dr.
Application grantedgrantedCritical
Publication of AT199050BpublicationCriticalpatent/AT199050B/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