| 摘要 |
<p>1,181,669. Measuring electrically. ELLIOTT BROS. (LONDON) Ltd. July 10, 1967 [July 21, 1966], No.20379/69. Divided out of 1,181,668. Heading G1N. The description is identical with that of the parent Specification 1,181,668, but the claims are directed to a helicopter fitted with the pivoted. Pitot-static tube controlled by vanes and servo means so that it is kept pointing into the incident air stream..</p> |
