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4541. Paper Section. News bulletin of Paper Section, Apr.-May and June-July 1946.

Corporate/Agency Authors:: National Bureau of Standards and Commerce Department
Publisher:: National Bureau of Standards
Date:: [1946.]
SuDoc number:: C 13.28:946/3,4

4542. Paper Section. News bulletin of Paper Section, Dec.-Jan. 1945-46 and Feb.-Mar. 1946.

Corporate/Agency Authors:: National Bureau of Standards and Commerce Department
Publisher:: National Bureau of Standards
Date:: [1946.]
SuDoc number:: C 13.28:946/1,2

4543. Paper tubes for packaging milk-bottle caps.

Corporate/Agency Authors:: National Bureau of Standards and Commerce Department
Publisher:: National Bureau of Standards
Date:: 1946
SuDoc number:: C 13.12/1:218

4544. Patents. Classification of patents issued Jan. 1.-June 25, 1946.

Corporate/Agency Authors:: Patent Office and Commerce Department
Publisher:: Patent Office
Date:: [1946.]
SuDoc number:: C 21.5/a 1:582/1-587/4

4545. Patents. Classification of patents issued July 2-Dec. 31, 1946.

Corporate/Agency Authors:: Patent Office and Commerce Department
Publisher:: Patent Office
Date:: [1946.]
SuDoc number:: C 21.5/a 1:588/1-593/5

4546. Patents. Classification of patents.

Corporate/Agency Authors:: Patent Office and Commerce Department
Publisher:: Patent Office
Date:: 2d revision. 1946
SuDoc number:: C 21.2:C 56/21

4547. Patents. Information concerning register of patents available for license or sale.

Corporate/Agency Authors:: Patent Office and Commerce Department
Publisher:: Patent Office
Date:: Jan. 1946
SuDoc number:: C 21.2:R 26/946

4548. Patents. [Manual of classification of patents. 1940, substitute pages containing corrections.]

Corporate/Agency Authors:: Patent Office and Commerce Department
Publisher:: Patent Office
Date:: 1946
SuDoc number:: C 21.12:940/p.148a-148b,rev.

4549. Pentz, Albert D. In Court of Customs and Patent Appeals, patent appeal no. 5301, in re Albert D. Pentz, fluid coupling; brief for commissioner of patents.

Corporate/Agency Authors:: Patent Office and Commerce Department
Publisher:: Patent Office
Date:: [1946.]
SuDoc number:: C 21.10:P 389

4550. Phthalic acid. Second dissociation constant of o-phthalic acid and related pH values of phthalate buffers from 0° to 60° C [with list of references]; by Walter J. Hanier and S. F. Acree.

Corporate/Agency Authors:: National Bureau of Standards and Commerce Department
Publisher:: National Bureau of Standards
Date:: [1946.]
SuDoc number:: C 13.22/a:1678

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