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- Corporate/Agency Authors:
- Patent Office and Commerce Department
- Publisher:
- Patent Office
- Date:
- [1939.]
- SuDoc number:
- C 21.10:K 829
- Corporate/Agency Authors:
- Patent Office and Commerce Department
- Publisher:
- Patent Office
- Date:
- [1939.]
- SuDoc number:
- C 21.10:K 829/2
- Corporate/Agency Authors:
- Patent Office and Commerce Department
- Publisher:
- Patent Office
- Date:
- [1939.]
- SuDoc number:
- C 21.10:L 229/2
- Corporate/Agency Authors:
- Patent Office and Commerce Department
- Publisher:
- Patent Office
- Date:
- [1939.]
- SuDoc number:
- C 21.10:L 229
- Corporate/Agency Authors:
- Patent Office and Commerce Department
- Publisher:
- Patent Office
- Date:
- [1939.]
- SuDoc number:
- C 21.10:L 446/6
- Corporate/Agency Authors:
- Patent Office and Commerce Department
- Publisher:
- Patent Office
- Date:
- [1939.]
- SuDoc number:
- C 21.10:L 585
- Corporate/Agency Authors:
- Patent Office and Commerce Department
- Publisher:
- Patent Office
- Date:
- [1939.]
- SuDoc number:
- C 21.10:L 967
- Corporate/Agency Authors:
- Patent Office and Commerce Department
- Publisher:
- Patent Office
- Date:
- [1939.]
- SuDoc number:
- C 21.10:M 267
- Corporate/Agency Authors:
- Patent Office and Commerce Department
- Publisher:
- Patent Office
- Date:
- 1939
- SuDoc number:
- C 21.10:M 28
- Corporate/Agency Authors:
- Patent Office and Commerce Department
- Publisher:
- Patent Office
- Date:
- [1939.]
- SuDoc number:
- C 21.10:M 451