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- Corporate/Agency Authors:
- Patent Office and Commerce Department
- Publisher:
- Patent Office
- Date:
- Apr. 24, 1928
- SuDoc number:
- C 21.5/a 2:369/4
- Corporate/Agency Authors:
- Patent Office and Commerce Department
- Publisher:
- Patent Office
- Date:
- Apr. 17, 1928
- SuDoc number:
- C 21.5/a 2:369/3
- Corporate/Agency Authors:
- Patent Office and Commerce Department
- Publisher:
- Patent Office
- Date:
- Apr. 10, 1928
- SuDoc number:
- C 21.5/a 2:369/2
- Corporate/Agency Authors:
- Patent Office and Commerce Department
- Publisher:
- Patent Office
- Date:
- Apr. 3, 1928
- SuDoc number:
- C 21.5/a 2:369/1
- Corporate/Agency Authors:
- Patent Office and Commerce Department
- Publisher:
- Patent Office
- Date:
- Revised Apr. 1, 1928. [1928.]
- SuDoc number:
- C 21.2:T 67/928
- Corporate/Agency Authors:
- Patent Office and Commerce Department
- Publisher:
- Patent Office
- Date:
- Mar. 27, 1928
- SuDoc number:
- C 21.5/a 2:368/4
- Corporate/Agency Authors:
- Patent Office and Commerce Department
- Publisher:
- Patent Office
- Date:
- Mar. 20, 1928
- SuDoc number:
- C 21.5/a 2:368/3
- Corporate/Agency Authors:
- Patent Office and Commerce Department
- Publisher:
- Patent Office
- Date:
- Mar. 13, 1928
- SuDoc number:
- C 21.5/a 2:368/2
- Corporate/Agency Authors:
- Patent Office and Commerce Department
- Publisher:
- Patent Office
- Date:
- Mar. 6, 1928
- SuDoc number:
- C 21.5/a 2:368/1
- Corporate/Agency Authors:
- Patent Office and Commerce Department
- Publisher:
- Patent Office
- Date:
- Feb. 28, 1928
- SuDoc number:
- C 21.5/a 2:367/4