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- Corporate/Agency Authors:
- Patent Office and Commerce Department
- Publisher:
- Patent Office
- Date:
- [1928.]
- SuDoc number:
- C 21.5/a 3:368/4
- Corporate/Agency Authors:
- Patent Office and Commerce Department
- Publisher:
- Patent Office
- Date:
- [1928.]
- SuDoc number:
- C 21.5/a 3:368/1
- Corporate/Agency Authors:
- Patent Office and Commerce Department
- Publisher:
- Patent Office
- Date:
- [1928.]
- SuDoc number:
- C 21.5/a 3:374/2
- Corporate/Agency Authors:
- Patent Office and Commerce Department
- Publisher:
- Patent Office
- Date:
- [1928.]
- SuDoc number:
- C 21.5/a 3:374/3
- Corporate/Agency Authors:
- Patent Office and Commerce Department
- Publisher:
- Patent Office
- Date:
- [1928.]
- SuDoc number:
- C 21.5/a 3:374/4
- Corporate/Agency Authors:
- Patent Office and Commerce Department
- Publisher:
- Patent Office
- Date:
- [1928.]
- SuDoc number:
- C 21.5/a 3:374/1
- Corporate/Agency Authors:
- Patent Office and Commerce Department
- Publisher:
- Patent Office
- Date:
- 1928
- SuDoc number:
- C 21.10:T 692
- Corporate/Agency Authors:
- Patent Office and Commerce Department
- Publisher:
- Patent Office
- Date:
- 1928
- SuDoc number:
- C 21.10:T 725
- Corporate/Agency Authors:
- Coast and Geodetic Survey and Commerce Department
- Publisher:
- Coast and Geodetic Survey
- Date:
- 1928
- SuDoc number:
- C 4.19:138
- Corporate/Agency Authors:
- Standards Bureau and Commerce Department
- Publisher:
- Standards Bureau
- Date:
- 1928
- SuDoc number:
- C 13.12/1:71