词条 | Dunlop, John Boyd |
释义 | Dunlop, John Boyd British veterinary surgeon born Feb. 5, 1840, Dreghorn, Ayrshire, Scot. died Oct. 23, 1921, Dublin ![]() It was later discovered that the principle of the pneumatic tire had already been patented in 1846. The company held various accessory patents, however, that enabled it to establish its position. Though invented as an improvement on the bicycle, the pneumatic tire arrived on the scene just in time to contribute to the success of the automobile. |
随便看 |
|
百科全书收录100133条中英文百科知识,基本涵盖了大多数领域的百科知识,是一部内容开放、自由的电子版百科全书。