A dish cover for use in a microwave oven has first and second generally semicircular portions which may be fastened to the rim of a dish by latch means and secured to the dish by insertion of the rim between an annular flange and lip extending inwardly from the sidewall of the cover. The flange extends...http://www.google.fr/patents/US5302791?utm_source=gb-gplus-shareBrevet US5302791 - Dish cover for use in a microwave oven
