352 / | HD | OPTICS: MOTION PICTURES |
57 | DF | STEREOSCOPIC CAMERAS AND/OR PROJECTORS {4} |
62 | .~ Sequential recording or reproducing left-right images {3} | |
63 | DF | .~.~> With image separation by synchronized viewer |
64 | DF | .~.~> With reciprocating film stip carrier |
65 | DF | .~.~> With pre-objective reflecting system |