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- Corporate/Agency Authors:
- Patent Office and Commerce Department
- Publisher:
- Patent Office
- Date:
- [1931.]
- SuDoc number:
- C 21.10:J 728
- Corporate/Agency Authors:
- Patent Office and Commerce Department
- Publisher:
- Patent Office
- Date:
- [1931.]
- SuDoc number:
- C 21.10:J 763
- Corporate/Agency Authors:
- Standards Bureau and Commerce Department
- Publisher:
- Standards Bureau
- Date:
- 1931
- SuDoc number:
- C 13.22:5/t.p.&ind.
- Corporate/Agency Authors:
- Standards Bureau and Commerce Department
- Publisher:
- Standards Bureau
- Date:
- 1931
- SuDoc number:
- C 13.22:6/4
- Corporate/Agency Authors:
- Standards Bureau and Commerce Department
- Publisher:
- Standards Bureau
- Date:
- 1931
- SuDoc number:
- C 13.22:7/2
- Corporate/Agency Authors:
- Standards Bureau and Commerce Department
- Publisher:
- Standards Bureau
- Date:
- 1931
- SuDoc number:
- C 13.22:6/2
- Corporate/Agency Authors:
- Standards Bureau and Commerce Department
- Publisher:
- Standards Bureau
- Date:
- 1931
- SuDoc number:
- C 13.22:6/1
- Corporate/Agency Authors:
- Standards Bureau and Commerce Department
- Publisher:
- Standards Bureau
- Date:
- 1931
- SuDoc number:
- C 13.22:7/1
- Corporate/Agency Authors:
- Standards Bureau and Commerce Department
- Publisher:
- Standards Bureau
- Date:
- 1931
- SuDoc number:
- C 13.22:6/3
- Corporate/Agency Authors:
- Standards Bureau and Commerce Department
- Publisher:
- Standards Bureau
- Date:
- 1931
- SuDoc number:
- C 13.22:6/5