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- Corporate/Agency Authors:
- National Bureau of Standards and Commerce Department
- Publisher:
- National Bureau of Standards
- Date:
- [1941.]
- SuDoc number:
- C 13.28:941/10
- Corporate/Agency Authors:
- National Bureau of Standards and Commerce Department
- Publisher:
- National Bureau of Standards
- Date:
- [1941.]
- SuDoc number:
- C 13.28:941/9
- Corporate/Agency Authors:
- National Bureau of Standards and Commerce Department
- Publisher:
- National Bureau of Standards
- Date:
- 1941
- SuDoc number:
- C 13.12/1:101/2
- Corporate/Agency Authors:
- Patent Office and Commerce Department
- Publisher:
- Patent Office
- Date:
- [1941.]
- SuDoc number:
- C 21.5/a 1:525/1-5
- Corporate/Agency Authors:
- Patent Office and Commerce Department
- Publisher:
- Patent Office
- Date:
- [1941.]
- SuDoc number:
- C 21.5/a 1:533/1-5
- Corporate/Agency Authors:
- Patent Office and Commerce Department
- Publisher:
- Patent Office
- Date:
- [1941.]
- SuDoc number:
- C 21.5/a 1:523/1-4
- Corporate/Agency Authors:
- Patent Office and Commerce Department
- Publisher:
- Patent Office
- Date:
- [1941.]
- SuDoc number:
- C 21.5/a 1:522/1-4
- Corporate/Agency Authors:
- Patent Office and Commerce Department
- Publisher:
- Patent Office
- Date:
- [1941.]
- SuDoc number:
- C 21.5/a 1:532/1-4
- Corporate/Agency Authors:
- Patent Office and Commerce Department
- Publisher:
- Patent Office
- Date:
- [1941.]
- SuDoc number:
- C 21.5/a:531/1-4
- Corporate/Agency Authors:
- Patent Office and Commerce Department
- Publisher:
- Patent Office
- Date:
- [1941.]
- SuDoc number:
- C 21.5/a 1:531/1-5