In 1944 the first integrated Patent Act was officially publicized which included invention, new model and new style.

 
  • 1944年,我國歷史上第一部比較完整的包括發(fā)明、新型、新式樣的專(zhuān)利法正式公布。
今日熱詞
目錄 附錄 查詞歷史
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