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- Corporate/Agency Authors:
- Patent Office and Commerce Department
- Publisher:
- Patent Office
- Date:
- [1930.]
- SuDoc number:
- C 21.10:Sy 67/2
- Corporate/Agency Authors:
- Standards Bureau and Commerce Department
- Publisher:
- Standards Bureau
- Date:
- [1930.]
- SuDoc number:
- C 13.13:161
- Corporate/Agency Authors:
- Standards Bureau and Commerce Department
- Publisher:
- Standards Bureau
- Date:
- [1930.]
- SuDoc number:
- C 13.13:156
- Corporate/Agency Authors:
- Standards Bureau and Commerce Department
- Publisher:
- Standards Bureau
- Date:
- [1930.]
- SuDoc number:
- C 13.13:160
- Corporate/Agency Authors:
- Standards Bureau and Commerce Department
- Publisher:
- Standards Bureau
- Date:
- [1930.]
- SuDoc number:
- C 13.13:164
- Corporate/Agency Authors:
- Standards Bureau and Commerce Department
- Publisher:
- Standards Bureau
- Date:
- [1930.]
- SuDoc number:
- C 13.13:154
- Corporate/Agency Authors:
- Standards Bureau and Commerce Department
- Publisher:
- Standards Bureau
- Date:
- [1930.]
- SuDoc number:
- C 13.13:153
- Corporate/Agency Authors:
- Standards Bureau and Commerce Department
- Publisher:
- Standards Bureau
- Date:
- [1930.]
- SuDoc number:
- C 13.13:158
- Corporate/Agency Authors:
- Standards Bureau and Commerce Department
- Publisher:
- Standards Bureau
- Date:
- [1930.]
- SuDoc number:
- C 13.13:155
- Corporate/Agency Authors:
- Standards Bureau and Commerce Department
- Publisher:
- Standards Bureau
- Date:
- [1930.]
- SuDoc number:
- C 13.13:157