| 摘要 |
1,273,276. Chucks. JACOBS MFG. CO. 29 Aug., 1969 [21 Oct., 1968], No. 4317/70. Divided out of 1,273,275. Heading B3B. [Also in Division F2] The subject-matter of this Specification is described in Specification 1,273,275, but the claims relate to the control valve. |
