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- Corporate/Agency Authors:
- Patent Office and Commerce Dept.
- Publisher:
- Patent Office
- Date:
- [1949.]
- SuDoc number:
- C 21.10:C 887
- Corporate/Agency Authors:
- Patent Office and Commerce Dept.
- Publisher:
- Patent Office
- Date:
- [1949.]
- SuDoc number:
- C 21.10:M 793
- Corporate/Agency Authors:
- Patent Office and Commerce Dept.
- Publisher:
- Patent Office
- Date:
- [1949.]
- SuDoc number:
- C 21.2:P 94
- Corporate/Agency Authors:
- Patent Office and Commerce Dept.
- Publisher:
- Patent Office
- Date:
- [1949.]
- SuDoc number:
- C 21.5/a 4:623/1-628/5
- Corporate/Agency Authors:
- Patent Office and Commerce Dept.
- Publisher:
- Patent Office
- Date:
- [1949.]
- SuDoc number:
- C 21.12:949/rev.pages 6
- Corporate/Agency Authors:
- Patent Office and Commerce Dept.
- Publisher:
- Patent Office
- Date:
- [1949.]
- SuDoc number:
- C 21.16:949
- Corporate/Agency Authors:
- Patent Office and Commerce Dept.
- Publisher:
- Patent Office
- Date:
- 1949
- SuDoc number:
- C 21.5:622-627/t.p.&cont.
- Corporate/Agency Authors:
- Patent Office and Commerce Dept.
- Publisher:
- Patent Office
- Date:
- [1949.]
- SuDoc number:
- C 21.5:623/1-628/5
- Corporate/Agency Authors:
- Patent Office and Commerce Dept.
- Publisher:
- Patent Office
- Date:
- [1949.]
- SuDoc number:
- C 21.5/a 3:623/1-628/5
- Corporate/Agency Authors:
- Patent Office and Commerce Dept.
- Publisher:
- Patent Office
- Date:
- [1949.]
- SuDoc number:
- C 21.5/a 2:623/1-628/5