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- Corporate/Agency Authors:
- Patent Office and Commerce Department
- Publisher:
- Patent Office
- Date:
- [1940.]
- SuDoc number:
- C 21.10:C 317
- Corporate/Agency Authors:
- Patent Office
- Publisher:
- Patent Office
- Date:
- [1940.]
- SuDoc number:
- C 21.10:C 386/2
- Corporate/Agency Authors:
- Patent Office
- Publisher:
- Patent Office
- Date:
- [1940.]
- SuDoc number:
- C 21.10:C 682
- Corporate/Agency Authors:
- Patent Office
- Publisher:
- Patent Office
- Date:
- [1940.]
- SuDoc number:
- C 21.10:C 774
- Corporate/Agency Authors:
- Patent Office
- Publisher:
- Patent Office
- Date:
- [1940.]
- SuDoc number:
- C 21.10:C 886/7
- Corporate/Agency Authors:
- Patent Office
- Publisher:
- Patent Office
- Date:
- [1940.]
- SuDoc number:
- C 21.10:D 228
- Corporate/Agency Authors:
- Patent Office and Commerce Department
- Publisher:
- Patent Office
- Date:
- [1940.]
- SuDoc number:
- C 21.10:D 281
- Corporate/Agency Authors:
- Patent Office and Commerce Department
- Publisher:
- Patent Office
- Date:
- [1940.]
- SuDoc number:
- C 21.10:D 446
- Corporate/Agency Authors:
- Patent Office and Commerce Department
- Publisher:
- Patent Office
- Date:
- [1940.]
- SuDoc number:
- C 21.10:D 631
- Corporate/Agency Authors:
- Patent Office and Commerce Department
- Publisher:
- Patent Office
- Date:
- [1940.]
- SuDoc number:
- C 21.10:D 769