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Priority to NL6503965ApriorityCriticalpatent/NL6503965A/xx
Publication of NL6503965ApublicationCriticalpatent/NL6503965A/xx
F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
F16J—PISTONS; CYLINDERS; SEALINGS
F16J3/00—Diaphragms; Bellows; Bellows pistons
F16J3/04—Bellows
F16J3/041—Non-metallic bellows
G—PHYSICS
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
G03B17/00—Details of cameras or camera bodies; Accessories therefor
G03B17/02—Bodies
G03B17/04—Bodies collapsible, foldable or extensible, e.g. book type