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- Corporate/Agency Authors:
- Patent Office and Commerce Dept.
- Publisher:
- Patent Office
- Date:
- [1972.]
- SuDoc number:
- C 21.5/a 5:N 845/971
- Corporate/Agency Authors:
- Patent Office and Commerce Dept.
- Publisher:
- Patent Office
- Date:
- [1968.]
- SuDoc number:
- C 21.5/a 5:N 845
- Corporate/Agency Authors:
- Patent Office
- Publisher:
- Patent Office
- Date:
- [1947.]
- SuDoc number:
- C 21.5/a 5:T 675/2
- Corporate/Agency Authors:
- Patent Office and Commerce Department
- Publisher:
- Patent Office
- Date:
- [1930.]
- SuDoc number:
- C 21.5/a 5:P 272
- Corporate/Agency Authors:
- Patent Office and Commerce Department
- Publisher:
- Patent Office
- Date:
- [1929.]
- SuDoc number:
- C 21.5/a 5:T 675
- Corporate/Agency Authors:
- Patent Office and Commerce Department
- Publisher:
- Patent Office
- Date:
- [1925.]
- SuDoc number:
- C 21.5/a 5:925/1