| 摘要 |
784,499. Two-part couplings. YOUNG, S. G. Jan. 15, 1954 [Oct. 16, 1952], No. 13956/56. Divided out of 784,498. Class 38 (1). A shuttered socket in which the shutter is biased by a leaf spring as described in the Complete and Provisional Specifications 784,498 from which the present Specification is divided, and as shown in the Figure accompanying the Provisional Specification 784,498. |
