| 摘要 |
<p>777,808. Automatic gain control. PYE. Ltd. Jan. 15, 1954, No. 8150/56. Divided out of 777,801. Addition to 777,805. Drawings to Specification. Class 40(5) The subject-matter of this Specification is included in that described in Specification 777,801, but the claims differ. Specifications 741,572, 777,804 and 777,806 also are referred to.</p> |
