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- Corporate/Agency Authors:
- Patent Office and Commerce Department
- Publisher:
- Patent Office
- Date:
- Mar. 24, 1931
- SuDoc number:
- C 21.5/a 2:404/4
- Corporate/Agency Authors:
- Standards Bureau and Commerce Department
- Publisher:
- Standards Bureau
- Date:
- Mar. 24, 1931
- SuDoc number:
- C 13.4:391
- Corporate/Agency Authors:
- Census Bureau and Commerce Department
- Publisher:
- Census Bureau
- Date:
- Mar. 20, 1931
- SuDoc number:
- C 3.20:930-931/10
- Corporate/Agency Authors:
- Coast and Geodetic Survey and Commerce Department
- Publisher:
- Coast and Geodetic Survey
- Date:
- Mar. 19, 1931
- SuDoc number:
- C 4.7/2:925/supp.6
- Corporate/Agency Authors:
- Patent Office and Commerce Department
- Publisher:
- Patent Office
- Date:
- Mar. 17, 1931
- SuDoc number:
- C 21.5/a 2:404/3
- Corporate/Agency Authors:
- Standards Bureau and Commerce Department
- Publisher:
- Standards Bureau
- Date:
- Mar. 16, 1931
- SuDoc number:
- C 1.13:M 38/rev., sec.2-11
- Corporate/Agency Authors:
- Census Bureau and Commerce Department
- Publisher:
- Census Bureau
- Date:
- Mar. 14, 1931
- SuDoc number:
- C 3.21:930-931/7
- Corporate/Agency Authors:
- Census Bureau and Commerce Department
- Publisher:
- Census Bureau
- Date:
- Mar. 12, 1931
- SuDoc number:
- C 3.25:930-931/7
- Corporate/Agency Authors:
- Patent Office and Commerce Department
- Publisher:
- Patent Office
- Date:
- Mar. 10, 1931
- SuDoc number:
- C 21.5/a 2:404/2
- Corporate/Agency Authors:
- Standards Bureau and Commerce Department
- Publisher:
- Standards Bureau
- Date:
- 2d edition. Mar. 10, 1931
- SuDoc number:
- C 13.12/1:95/2d ed.