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- Corporate/Agency Authors:
- Patent Office and Commerce Department
- Publisher:
- Patent Office
- Date:
- 1941
- SuDoc number:
- C 21.5:521/t.p.&cont.
- Corporate/Agency Authors:
- Patent Office and Commerce Department
- Publisher:
- Patent Office
- Date:
- 1941
- SuDoc number:
- C 21.5:529/t.p.&cont.
- Corporate/Agency Authors:
- Patent Office and Commerce Department
- Publisher:
- Patent Office
- Date:
- [1941.]
- SuDoc number:
- C 21.5/a 4:530/1-5
- Corporate/Agency Authors:
- Patent Office and Commerce Department
- Publisher:
- Patent Office
- Date:
- [1941.]
- SuDoc number:
- C 21.10:Os 7/3
- Corporate/Agency Authors:
- National Bureau of Standards and Commerce Department
- Publisher:
- National Bureau of Standards
- Date:
- [1941.]
- SuDoc number:
- C 13.22/a:1367
- Corporate/Agency Authors:
- Patent Office and Commerce Department
- Publisher:
- Patent Office
- Date:
- [1941.]
- SuDoc number:
- C 21.10:P 131
- Corporate/Agency Authors:
- Civil Aeronautics Board and Commerce Department
- Publisher:
- Civil Aeronautics Board
- Date:
- [1941.]
- SuDoc number:
- C 31.211/a:3/7
- Corporate/Agency Authors:
- Civil Aeronautics Board, Civil Aeronautics Authority, and Commerce Department
- Publisher:
- Civil Aeronautics Board
- Date:
- [1941.]
- SuDoc number:
- C 31.212:P 191/3
- Corporate/Agency Authors:
- Civil Aeronautics Board, Civil Aeronautics Authority, and Commerce Department
- Publisher:
- Civil Aeronautics Board
- Date:
- [1941.]
- SuDoc number:
- C 31.212:P 191
- Corporate/Agency Authors:
- Civil Aeronautics Board, Civil Aeronautics Authority, and Commerce Department
- Publisher:
- Civil Aeronautics Board
- Date:
- [1941.]
- SuDoc number:
- C 31.212:P 191/2