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- Corporate/Agency Authors:
- Patent Office and Commerce Department
- Publisher:
- Patent Office
- Date:
- Apr. 15, 1930
- SuDoc number:
- C 21.5/a 2:393/3
- Corporate/Agency Authors:
- Mines Bureau and Commerce Department
- Publisher:
- Mines Bureau
- Date:
- Apr. 15, 1930
- SuDoc number:
- C 22.8/a:G 563/10/928
- Corporate/Agency Authors:
- Census Bureau and Commerce Department
- Publisher:
- Census Bureau
- Date:
- Apr. 14, 1930
- SuDoc number:
- C 3.21:929-930/8
- Corporate/Agency Authors:
- Mines Bureau and Commerce Department
- Publisher:
- Mines Bureau
- Date:
- Apr. 12, 1930
- SuDoc number:
- C 22.8/a:B 329/928
- Corporate/Agency Authors:
- Census Bureau and Commerce Department
- Publisher:
- Census Bureau
- Date:
- Apr. 12, 1930
- SuDoc number:
- C 3.25:929-930/8
- Corporate/Agency Authors:
- Patent Office and Commerce Department
- Publisher:
- Patent Office
- Date:
- Apr. 8, 1930
- SuDoc number:
- C 21.5/a 2:393/2
- Corporate/Agency Authors:
- Standards Bureau and Commerce Department
- Publisher:
- Standards Bureau
- Date:
- Apr. 8, 1930
- SuDoc number:
- C 13.12/1:93
- Corporate/Agency Authors:
- Standards Bureau and Commerce Department
- Publisher:
- Standards Bureau
- Date:
- Apr. 8, 1930
- SuDoc number:
- C 13.12/1:110
- Corporate/Agency Authors:
- Standards Bureau and Commerce Department
- Publisher:
- Standards Bureau
- Date:
- Apr. 7, 1930
- SuDoc number:
- C 13.20:19
- Corporate/Agency Authors:
- Commerce Department
- Publisher:
- Commerce Department
- Date:
- Apr. 7, 1930
- SuDoc number:
- C 1.4:236/13