“专利证”造句

兹许可这些法人和公司在专利证(的规定范围)下生产各种特许设备.
Those persons and firms are licensed to produce licensed devices under patent.

已经存在的专利证成千上万?
There are hundreds of thousands of patents in existence?

现在专利证还在他东家手里呢.
His master holds the patent of it.