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- Corporate/Agency Authors:
- Standards Bureau and Commerce Department
- Publisher:
- Standards Bureau
- Date:
- [1931.]
- SuDoc number:
- C 13.22/a:380
- Corporate/Agency Authors:
- Patent Office and Commerce Department
- Publisher:
- Patent Office
- Date:
- Dec. 30, 1930
- SuDoc number:
- C 21.5/a 2:401/5
- Corporate/Agency Authors:
- Mines Bureau and Commerce Department
- Publisher:
- Mines Bureau
- Date:
- Dec. 30, 1930
- SuDoc number:
- C 22.8/a:St 72/929
- Corporate/Agency Authors:
- Patent Office and Commerce Department
- Publisher:
- Patent Office
- Date:
- Dec. 23, 1930
- SuDoc number:
- C 21.5/a 2:401/4
- Corporate/Agency Authors:
- Standards Bureau and Commerce Department
- Publisher:
- Standards Bureau
- Date:
- Dec. 23, 1930
- SuDoc number:
- C 13.20:2
- Corporate/Agency Authors:
- Mines Bureau and Commerce Department
- Publisher:
- Mines Bureau
- Date:
- Dec. 22, 1930
- SuDoc number:
- C 22.8/a:Sl 14/929
- Corporate/Agency Authors:
- Mines Bureau and Commerce Department
- Publisher:
- Mines Bureau
- Date:
- Dec. 22, 1930
- SuDoc number:
- C 22.8/a:T 143/929
- Corporate/Agency Authors:
- Census Bureau and Commerce Department
- Publisher:
- Census Bureau
- Date:
- Dec. 20, 1930
- SuDoc number:
- C 3.20:930-931/8
- Corporate/Agency Authors:
- Mines Bureau and Commerce Department
- Publisher:
- Mines Bureau
- Date:
- Dec. 18, 1930
- SuDoc number:
- C 22.8/a:As 15/929
- Corporate/Agency Authors:
- Commerce Department
- Publisher:
- Commerce Department
- Date:
- Dec. 18, 1930
- SuDoc number:
- C 1.4:251/17