Author: Commerce Department / Catalog Issue Year Decade: 1930 - 1939 - Blacklight Search Results

Start Over Author Commerce Department Catalog Issue Year Decade 1930 - 1939

13171. Photographic emulsions. Spectral sensitization of photographic emulsions, notes on bathing with pinacyanol-pinaflavol mixtures; by Burt H. Carroll [and] Donald Hubbard.

Corporate/Agency Authors:: Standards Bureau and Commerce Department
Publisher:: Standards Bureau
Date:: [1930.]
SuDoc number:: C 13.22/a:173

13172. Photographic plates. Comparison of resolving power and sensitivity of photographic plates with varying development; by Burt H. Carroll [and] Donald Hubbard.

Corporate/Agency Authors:: Standards Bureau and Commerce Department
Publisher:: Standards Bureau
Date:: [1930.]
SuDoc number:: C 13.22/a:183

13173. Pierce Arrow Motor Car Company. In Court of Customs and Patent Appeals, patent appeal no. 2870, in re Pierce Arrow Motor Car Company, trade-mark for automotive vehicles and their component parts; brief for commissioner of patents.

Corporate/Agency Authors:: Patent Office and Commerce Department
Publisher:: Patent Office
Date:: [1930.]
SuDoc number:: C 21.10:P 611/2

13174. Piezo oscillators. Design of portable temperature-controlled piezo oscillator; by V. E. Heaton [and] W. H. Brattain.

Corporate/Agency Authors:: Standards Bureau and Commerce Department
Publisher:: Standards Bureau
Date:: [1930.]
SuDoc number:: C 13.22/a:153

13175. Piezo oscillators. Method and apparatus used in testing piezo oscillators for broadcasting stations; by E. L. Hall.

Corporate/Agency Authors:: Standards Bureau and Commerce Department
Publisher:: Standards Bureau
Date:: [1930.]
SuDoc number:: C 13.22/a:135

13176. Piezo oscillators. New piezo oscillations with quartz cylinders cut along optical axis; by August Hund [and] R. B. Wright.

Corporate/Agency Authors:: Standards Bureau and Commerce Department
Publisher:: Standards Bureau
Date:: [1930.]
SuDoc number:: C 13.22/a:156

13177. Pipe-fittings. Standard weight malleable iron or steel screwed unions.

Corporate/Agency Authors:: Standards Bureau and Commerce Department
Publisher:: Standards Bureau
Date:: 1930
SuDoc number:: C 13.20:7

13178. Pipettes. Gas analysis pipette for difficult absorptions; by Martin Shepherd.

Corporate/Agency Authors:: Standards Bureau and Commerce Department
Publisher:: Standards Bureau
Date:: [1930.]
SuDoc number:: C 13.22/a:177

13179. Pitt, William. In Court of Customs and Patent Appeals, patent appeal no. 2634, in re William Pitt, transmission for automobiles; brief for commissioner of patents.

Corporate/Agency Authors:: Patent Office and Commerce Department
Publisher:: Patent Office
Date:: [1930.]
SuDoc number:: C 21.10:P 686

13180. Plankton, Investigations on plankton production in fish ponds [with list of literature cited]; by A. H. Wiehe.

Corporate/Agency Authors:: Fisheries Bureau and Commerce Department
Publisher:: Fisheries Bureau
Date:: 1930
SuDoc number:: C 6.3/a:P 693/3

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