作者: James O. Thompson
DOI:
关键词: FLEX 、 Engineering drawing 、 Engineering 、 Card holder
摘要: A plastic display card holder for receiving and gripping a purposes comprises interconnected spaced-apart parallel wall portions. The portions are connected in manner to provide an entrance insertion of card. plurality resilient projections provided on the which flex as is inserted into through entrance. flexed grip attempt recover their normal unflexed position.