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BS 1761:1951Specification for single bucket excavators of the crawler-mounted friction-driven typestandard by BSI Group, 09/05/1951
BS 1782:1951Specification for couplings for suction and delivery hose (1 1/2 in. to 8 in. nominal sizes) other than fire hose couplingsstandard by BSI Group, 08/22/1951
BS 376-1:1951Railway signalling symbols. Schematic symbolsstandard by BSI Group, 07/10/1951
BS 561:1951Specification for alternating-current line relays double-element 3-position (for railway signalling)standard by BSI Group, 06/15/1951
BS 1745:1951Specification for alternating-current relays for railway signalling: track relays (double-element, 2-position), line relays (single-element, 2-position)standard by BSI Group, 06/08/1951
BS 93:1951Specification for British Association (B.A.) screw threads with tolerances for sizes 0 B.A. to 16 B.Astandard by BSI Group, 05/25/1951
BS 1685:1951Specification for bevel protractors (mechanical and optical)standard by BSI Group, 05/22/1951
BS 1734:1951Specification for micrometer headsstandard by BSI Group, 04/16/1951
BS 641:1951Dimensions of small rivets for general purposesstandard by BSI Group, 03/31/1951
BS 1728-1:1951Methods for the analysis of aluminium and aluminium alloys. Determination of copperstandard by BSI Group, 03/31/1951
BS 57:1951Specification. B.A. screws bolts and nutsstandard by BSI Group, 03/31/1951
BS SP 31 AND 32:1951Specifications for split taper pins for aeronautical purposesstandard by BSI Group, 03/30/1951