| 摘要 |
<p>Apparatus for the production of circular reproductions, even in several colours, with great accuracy and great reproducibility. The apparatus comprises a very fine ray of light (F) over which, and perpendicularly thereto, moves a frame (C) holding the original and on which, in contact therewith, there turns a disc (B) holding the sensitive film. The apparatus of the invention is used particularly in the manufacture of stamped cans for preserving foods. <IMAGE></p> |
