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- Corporate/Agency Authors:
- Patent Office and Commerce Department
- Publisher:
- Patent Office
- Date:
- [1931.]
- SuDoc number:
- C 21.5/a 3:406/4
- Corporate/Agency Authors:
- Patent Office and Commerce Department
- Publisher:
- Patent Office
- Date:
- [1931.]
- SuDoc number:
- C 21.5/a 3:406/1
- Corporate/Agency Authors:
- Patent Office and Commerce Department
- Publisher:
- Patent Office
- Date:
- Revised Jan. 1, 1932 [11th revised edition]. 1931
- SuDoc number:
- C 21.7/2:932
- Corporate/Agency Authors:
- Patent Office and Commerce Department
- Publisher:
- Patent Office
- Date:
- [1931.]
- SuDoc number:
- C 21.10:V 234
- Corporate/Agency Authors:
- Patent Office and Commerce Department
- Publisher:
- Patent Office
- Date:
- [1931.]
- SuDoc number:
- C 21.10:W 154/2
- Corporate/Agency Authors:
- Patent Office and Commerce Department
- Publisher:
- Patent Office
- Date:
- [1931.]
- SuDoc number:
- C 21.10:W 154/3
- Corporate/Agency Authors:
- Patent Office and Commerce Department
- Publisher:
- Patent Office
- Date:
- [1931.]
- SuDoc number:
- C 21.10:W 156
- Corporate/Agency Authors:
- Patent Office and Commerce Department
- Publisher:
- Patent Office
- Date:
- [1931.]
- SuDoc number:
- C 21.10:W 332/2
- Corporate/Agency Authors:
- Patent Office and Commerce Department
- Publisher:
- Patent Office
- Date:
- [1931.]
- SuDoc number:
- C 21.10:W 349
- Corporate/Agency Authors:
- Patent Office and Commerce Department
- Publisher:
- Patent Office
- Date:
- [1931.]
- SuDoc number:
- C 21.10:W 461