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BS 1655:1950 Specification for flanged automatic control valves for the process control industry (face-to-face dimensions)
BS G 125:1950 Specification for turn and slip indicators for aircraft purposes
BS 811:1950 Specification for cycle (B.S.C.) threads (formerly known as C.E.I. threads)
BS SP 21:1950 Specification for lubricating nipples for aircraft purposes
BS G 122:1949 Specification for aircraft magnetic compass, remote-reading (gyro-stabilized)
BS M 22:1949 Specification for silica gel acid activated for aircraft purposes
BS G 123:1949 Specification for aircraft magnetic compass, remote-reading (non-stabilized)
BS 5550-3.9.1:1980 Cinematography. 35 mm film. Projector spools - Specification for 35 mm film spools of 610 m capacity (38 cm size) for release prints
BS G 118:1949 Specification for aircraft magnetic compass, direct-reading
BS SP 18 and 19:1949 Specification for washers for aircraft purposes (primarily for use with timber)