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- Corporate/Agency Authors:
- Patent Office and Commerce Department
- Publisher:
- Patent Office
- Date:
- [1929.]
- SuDoc number:
- C 21.5/a 3:383/1
- Corporate/Agency Authors:
- Patent Office
- Publisher:
- Patent Office
- Date:
- Dec. 25, 1928
- SuDoc number:
- C 21.5/a 2:377/4
- Corporate/Agency Authors:
- Patent Office
- Publisher:
- Patent Office
- Date:
- Dec. 18, 1928
- SuDoc number:
- C 21.5/a 2:377/3
- Corporate/Agency Authors:
- Patent Office
- Publisher:
- Patent Office
- Date:
- Dec. 11, 1928
- SuDoc number:
- C 21.5/a 2:377/2
- Corporate/Agency Authors:
- Patent Office
- Publisher:
- Patent Office
- Date:
- Dec. 4, 1928
- SuDoc number:
- C 21.5/a 2:377/1
- Corporate/Agency Authors:
- Patent Office
- Publisher:
- Patent Office
- Date:
- Nov. 27, 1928
- SuDoc number:
- C 21.5/a 2:376/4
- Corporate/Agency Authors:
- Patent Office
- Publisher:
- Patent Office
- Date:
- Nov. 20, 1928
- SuDoc number:
- C 21.5/a 2:376/3
- Corporate/Agency Authors:
- Patent Office
- Publisher:
- Patent Office
- Date:
- Nov. 13, 1928
- SuDoc number:
- C 21.5/a 2:376/2
- Corporate/Agency Authors:
- Patent Office
- Publisher:
- Patent Office
- Date:
- Nov. 6, 1928
- SuDoc number:
- C 21.5/a 2:376/1
- Corporate/Agency Authors:
- Patent Office
- Publisher:
- Patent Office
- Date:
- Oct. 30, 1928
- SuDoc number:
- C 21.5/a 2:375/5