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- Corporate/Agency Authors:
- Patent Office and Commerce Department
- Publisher:
- Patent Office
- Date:
- [1934.]
- SuDoc number:
- C 21.5/a 1:444/1-5
- Corporate/Agency Authors:
- Patent Office and Commerce Department
- Publisher:
- Patent Office
- Date:
- [1934.]
- SuDoc number:
- C 21.5/a 1:443/1-4
- Corporate/Agency Authors:
- Patent Office and Commerce Department
- Publisher:
- Patent Office
- Date:
- [1934.]
- SuDoc number:
- C 21.5/a 1:440/1-4
- Corporate/Agency Authors:
- Patent Office and Federal Employment Stabilization Office
- Publisher:
- Patent Office
- Date:
- [1934.]
- SuDoc number:
- C 21.5/a 1:442/1-5
- Corporate/Agency Authors:
- Patent Office and Commerce Department
- Publisher:
- Patent Office
- Date:
- [1934.]
- SuDoc number:
- C 21.5/a 1:448/1-4
- Corporate/Agency Authors:
- Patent Office and Commerce Department
- Publisher:
- Patent Office
- Date:
- [1934.]
- SuDoc number:
- C 21.5/a 1:447/1-5
- Corporate/Agency Authors:
- Patent Office and Agriculture Department
- Publisher:
- Patent Office
- Date:
- [1934.]
- SuDoc number:
- C 21.5/a 1:446/1-4
- Corporate/Agency Authors:
- Patent Office and Commerce Department
- Publisher:
- Patent Office
- Date:
- [Reprint]. 1934
- SuDoc number:
- C 21.2:P 27/933-2
- Corporate/Agency Authors:
- Patent Office
- Publisher:
- Patent Office
- Date:
- 1934
- SuDoc number:
- C 21.5/2:933
- Corporate/Agency Authors:
- Patent Office and Commerce Department
- Publisher:
- Patent Office
- Date:
- [1934.]
- SuDoc number:
- C 21.12:929/p.41,42/rev.etc.