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161. Weights and measures. 1940 correction sheet 1-4, changes adopted by 30th National Conference on Weights and Measures, 1940.

Corporate/Agency Authors:: National Bureau of Standards and Commerce Department
Publisher:: National Bureau of Standards
Date:: 1940
SuDoc number:: C 13.11:22/corr.1-4/940

162. Weights and measures. 1940 supplementary sheet 1 and 2, action of 30th National Conference [on Weights and Measures, 1940].

Corporate/Agency Authors:: National Bureau of Standards and Commerce Department
Publisher:: National Bureau of Standards
Date:: [1940.]
SuDoc number:: C 13.11:22/supp.1-2/940

163. Radios. Safety rules for radio installations, comprising pt. 5 of 5th edition, National electrical safety code.

Corporate/Agency Authors:: National Bureau of Standards and Commerce Department
Publisher:: National Bureau of Standards
Date:: Dec. 1, 1939
SuDoc number:: C 13.11:35

164. Weights and measures. 1939 correction sheet 1-8, National Bureau of Standards handbook H22.

Corporate/Agency Authors:: National Bureau of Standards and Commerce Department
Publisher:: National Bureau of Standards
Date:: [1939.]
SuDoc number:: C 13.11:22/corr.1-8, 939

165. Safety of life. American standard safety code for protection of heads, eyes, and respiratory organs.

Corporate/Agency Authors:: National Bureau of Standards and Commerce Department
Publisher:: National Bureau of Standards
Date:: Nov. 1, 1938
SuDoc number:: C 13.11:24

166. Safety rules for operation of electric equipment and lines, comprising pt. 4 of 5th edition, National electrical safety code.

Corporate/Agency Authors:: National Bureau of Standards and Commerce Department
Publisher:: National Bureau of Standards
Date:: Oct. 13, 1938
SuDoc number:: C 13.11:34

167. Radium protection.

Corporate/Agency Authors:: National Bureau of Standards and Commerce Department
Publisher:: National Bureau of Standards
Date:: Aug. 25, 1938
SuDoc number:: C 13.11:23

168. Weights and measures. Specifications, tolerances, and regulations for commercial weights and measures and weighing and measuring devices [as adopted by National Conference on Weights and Measures and recommended by National Bureau of Standards for adoption by the several States].

Corporate/Agency Authors:: National Bureau of Standards and Commerce Department
Publisher:: National Bureau of Standards
Date:: Feb. 8, 1938
SuDoc number:: C 13.11:22

169. Weights and measures, 1938 correction sheet 1 and 2, National Bureau of Standards Handbook H22 [Specifications, tolerances, and regulations for commercial weights and measures and weighing and measuring devices] changes adopted by 28th National Conference on Weights and Measures, 1938.

Corporate/Agency Authors:: National Bureau of Standards
Publisher:: National Bureau of Standards
Date:: [1938.]
SuDoc number:: C 13.11:22/corr.1, 2

170. Lightning. Code for protection against lightning [with bibliography]; approved by American Standards Association, Oct. 29, 1937.

Corporate/Agency Authors:: National Bureau of Standards
Publisher:: National Bureau of Standards
Date:: Nov. 2, 1937
SuDoc number:: C 13.11:21

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