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- Corporate/Agency Authors:
- Civil Aeronautics Board and Commerce Dept.
- Publisher:
- Civil Aeronautics Board
- Date:
- [1950.]
- SuDoc number:
- C 31.220:(no.)
- Corporate/Agency Authors:
- Foreign and Domestic Commerce Bureau and Commerce Dept.
- Publisher:
- Foreign and Domestic Commerce Bureau
- Date:
- [1948 reprint with changes] 1950
- SuDoc number:
- C 18.206:(no.)
- Corporate/Agency Authors:
- Patent Office and Commerce Dept.
- Publisher:
- Patent Office
- Date:
- [1950.]
- SuDoc number:
- C 21.12:947/rev.pages-7
- Corporate/Agency Authors:
- Patent Office and Commerce Dept.
- Publisher:
- Patent Office
- Date:
- [1950.]
- SuDoc number:
- C 21.12:947/rev.pages-8
- Corporate/Agency Authors:
- Civil Aeronautics Administration and Commerce Dept.
- Publisher:
- Civil Aeronautics Administration
- Date:
- [1950.]
- SuDoc number:
- C 31.144:949