占先的专利
The prior patent
以上为机器翻译结果，长、整句建议使用 人工翻译 。
后来，越来越多的老牌公司也竞相将此类专利入卷归档，至少作为防御措施，以防竞争对手抢占先机。
Later, more established companies raced to add such patents to their files, if only as a defensive move against rivals that might beat them to the punch.
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