| 摘要 |
647,912. Rod couplings. GENERAL DESCALING CO., Ltd., and WEBB, L. W. Oct. 7, 1947, No. 26884. [Class 99(i)] A rod or like coupling consists of a body portion 1 with threaded bores 2 to engage a plug 4 bored to receive a rod 7 having a turned up end 7a which is retained between a flange 3 in the body 1 and a slot 6 in the plug 4.
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