| 摘要 |
338,390. Thornton-Pickard Manufacturing Co., Ltd., Pickard, A. G., and Reeves, J. H. Dec. 4, 1929. Drawings to Specification. Cameras, reflex. - The folding hood for the focusing screen of a reflex camera is provided with a pocket or catches for holding the shutter, of the dark slide when the shutter is withdrawn for an exposure. |
