| 摘要 |
PROBLEM TO BE SOLVED: To provide a light transmission cover which has a proper balance by providing marked recesses at right and left sides and which is easy to be opened. SOLUTION: The light transmission cover 1 includes a collar extending outward at an edge of an opening in a pot shape narrowed in the opening side. The cover 1 is pressure formed. Material display parts 2 each for displaying a ruggedness are formed at opposite positions to the collar in the cover 1, and the display parts 2 are formed similarly at least two positions of a side face side and the other side face side of the cover 1. COPYRIGHT: (C)2004,JPO |
