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- Corporate/Agency Authors:
- Patent Office and Commerce Department
- Publisher:
- Patent Office
- Date:
- [1937.]
- SuDoc number:
- C 21.5/a 1:480/1-4
- Corporate/Agency Authors:
- Patent Office and Commerce Department
- Publisher:
- Patent Office
- Date:
- [1937.]
- SuDoc number:
- C 21.5/a 1:479/1-5
- Corporate/Agency Authors:
- Patent Office and Commerce Department
- Publisher:
- Patent Office
- Date:
- [1937.]
- SuDoc number:
- C 21.5/a 1:476/1-5
- Corporate/Agency Authors:
- Patent Office and Commerce Department
- Publisher:
- Patent Office
- Date:
- [1937.]
- SuDoc number:
- C 21.5/a 1:478/1-4
- Corporate/Agency Authors:
- Patent Office and Commerce Department
- Publisher:
- Patent Office
- Date:
- [1937.]
- SuDoc number:
- C 21.5/a 1:484/1-5
- Corporate/Agency Authors:
- Patent Office and Commerce Department
- Publisher:
- Patent Office
- Date:
- [1937.]
- SuDoc number:
- C 21.5/a 1:483/1-4
- Corporate/Agency Authors:
- Patent Office and Commerce Department
- Publisher:
- Patent Office
- Date:
- [1937.]
- SuDoc number:
- C 21.5/a 1:482/1-4
- Corporate/Agency Authors:
- Patent Office and Commerce Department
- Publisher:
- Patent Office
- Date:
- 1937
- SuDoc number:
- C 21.5/2:936
- Corporate/Agency Authors:
- Patent Office and Commerce Department
- Publisher:
- Patent Office
- Date:
- 1937
- SuDoc number:
- C 21.12:929/p.1-9/rev.2, etc.
- Corporate/Agency Authors:
- Patent Office and Commerce Department
- Publisher:
- Patent Office
- Date:
- 1937
- SuDoc number:
- C 21.12:929/p.39-40/rev.-2, etc.