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- Corporate/Agency Authors:
- Patent Office and Commerce Department
- Publisher:
- Patent Office
- Date:
- [1942.]
- SuDoc number:
- C 21.5/a 1:540/1-4
- Corporate/Agency Authors:
- Patent Office
- Publisher:
- Patent Office
- Date:
- [1942.]
- SuDoc number:
- C 21.5/a 1:539/1-5
- Corporate/Agency Authors:
- Patent Office and Commerce Department
- Publisher:
- Patent Office
- Date:
- [1942.]
- SuDoc number:
- C 21.5/a 1:536/1-5
- Corporate/Agency Authors:
- Patent Office and Commerce Department
- Publisher:
- Patent Office
- Date:
- [1942.]
- SuDoc number:
- C 21.5/a 1:538/1-4
- Corporate/Agency Authors:
- Patent Office and Commerce Department
- Publisher:
- Patent Office
- Date:
- [1942.]
- SuDoc number:
- C 21.5/a 1:544/1-4
- Corporate/Agency Authors:
- Patent Office
- Publisher:
- Patent Office
- Date:
- [1942.]
- SuDoc number:
- C 21.5/a 1:543/1-4
- Corporate/Agency Authors:
- Patent Office
- Publisher:
- Patent Office
- Date:
- [1942.]
- SuDoc number:
- C 21.5/a 1:542/1-5
- Corporate/Agency Authors:
- Patent Office and Commerce Department
- Publisher:
- Patent Office
- Date:
- 1942
- SuDoc number:
- C 21.5/2:941
- Corporate/Agency Authors:
- Patent Office and Commerce Department
- Publisher:
- Patent Office
- Date:
- 1942
- SuDoc number:
- C 21.12:940/p.1, rev., etc.
- Corporate/Agency Authors:
- Patent Office
- Publisher:
- Patent Office
- Date:
- 1942
- SuDoc number:
- C 21.12:940/p.129, rev., etc.