| 摘要 |
1329212 Winches BYRON JACKSON Inc 19 April 1971 [16 March 1970] 7339/73 Divided out of 1329211 Heading B8B The subject matter of this Specification is identical with that described in Specification 1,329,211, but the claims are concerned with the driving and locking of the hoist drum relative to the shaft on which it is mounted.
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