專利 - 法令,規則等

專利法 by: (Language materials, printed)

高科技專利法 by: (Language materials, printed)

專利法 by: (Language materials, printed)

創新管理 = Innovation management : 創意發明與專利保護實務; innovation and patent protection practice by: (Language materials, printed)

電機、電子專利技術寫作秘笈 by: (Language materials, printed)

專利- 法令,規則等

發明

專利