| 单词 | register a patent |
| 释义 | register a patent The 1911 creation was probably designed to overcome the failure to register the patent at the time of creation. Retrieved from Wikipedia CC BY-SA 3.0 In 1894, he registered a patent for the double metal hose consisting of two coaxial metal hoses twisted in opposite directions. Retrieved from Wikipedia CC BY-SA 3.0 About this time he registered a patent for an isometrograph, a draughtsmans instrument for hatching, shading and other geometrical design work. Retrieved from Wikipedia CC BY-SA 3.0 He had built a motorcycle of his own in 1927 and in 1928 had registered a patent for a cantilever rear suspension of his own design. Retrieved from Wikipedia CC BY-SA 3.0 |
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