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- Corporate/Agency Authors:
- Mines Bureau and Commerce Department
- Publisher:
- Mines Bureau
- Date:
- Oct. 28, 1930
- SuDoc number:
- C 22.8/a:P 696/929
- Corporate/Agency Authors:
- Mines Bureau and Commerce Department
- Publisher:
- Mines Bureau
- Date:
- Oct. 25, 1930
- SuDoc number:
- C 22.8/a:Ab 84/929
- Corporate/Agency Authors:
- Census Bureau and Commerce Department
- Publisher:
- Census Bureau
- Date:
- Oct. 25, 1930
- SuDoc number:
- C 3.20:930-931/4
- Corporate/Agency Authors:
- Standards Bureau and Commerce Department
- Publisher:
- Standards Bureau
- Date:
- Oct. 24, 1930
- SuDoc number:
- C 13.4:386
- Corporate/Agency Authors:
- Mines Bureau and Commerce Department
- Publisher:
- Mines Bureau
- Date:
- Oct. 22, 1930
- SuDoc number:
- C 22.8/a:An 87/929
- Corporate/Agency Authors:
- Standards Bureau and Commerce Department
- Publisher:
- Standards Bureau
- Date:
- Oct. 22, 1930
- SuDoc number:
- C 13.20:23
- Corporate/Agency Authors:
- Mines Bureau and Commerce Department
- Publisher:
- Mines Bureau
- Date:
- Oct. 22, 1930
- SuDoc number:
- C 22.8/a:Ir 6/929
- Corporate/Agency Authors:
- Patent Office and Commerce Department
- Publisher:
- Patent Office
- Date:
- Oct. 21, 1930
- SuDoc number:
- C 21.5/a 2:399/3
- Corporate/Agency Authors:
- Mines Bureau and Commerce Department
- Publisher:
- Mines Bureau
- Date:
- Oct. 21, 1930
- SuDoc number:
- C 22.8/a:F 333/929
- Corporate/Agency Authors:
- Standards Bureau and Commerce Department
- Publisher:
- Standards Bureau
- Date:
- Oct. 21, 1930
- SuDoc number:
- C 13.20:8