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- Corporate/Agency Authors:
- Patent Office and Commerce Department
- Publisher:
- Patent Office
- Date:
- Jan. 11, 1938
- SuDoc number:
- C 21.5/a 2:486/2
- Corporate/Agency Authors:
- Patent Office and Commerce Department
- Publisher:
- Patent Office
- Date:
- Jan. 4, 1938
- SuDoc number:
- C 21.5/a 2:486/1
- Corporate/Agency Authors:
- Patent Office
- Publisher:
- Patent Office
- Date:
- Dec. 28, 1937
- SuDoc number:
- C 21.5/a 2:485/4
- Corporate/Agency Authors:
- Patent Office
- Publisher:
- Patent Office
- Date:
- Dec. 21, 1937
- SuDoc number:
- C 21.5/a 2:485/3
- Corporate/Agency Authors:
- Patent Office
- Publisher:
- Patent Office
- Date:
- Dec. 14, 1937
- SuDoc number:
- C 21.5/a 2:485/2
- Corporate/Agency Authors:
- Patent Office
- Publisher:
- Patent Office
- Date:
- Dec. 7, 1937
- SuDoc number:
- C 21.5/a 2:485/1
- Corporate/Agency Authors:
- Patent Office and Commerce Department
- Publisher:
- Patent Office
- Date:
- Nov. 30, 1937
- SuDoc number:
- C 21.5/a 2:484/5
- Corporate/Agency Authors:
- Patent Office and Commerce Department
- Publisher:
- Patent Office
- Date:
- Nov. 23, 1937
- SuDoc number:
- C 21.5/a 2:484/4
- Corporate/Agency Authors:
- Patent Office and Commerce Department
- Publisher:
- Patent Office
- Date:
- Nov. 16, 1937
- SuDoc number:
- C 21.5/a 2:484/3
- Corporate/Agency Authors:
- Patent Office and Commerce Department
- Publisher:
- Patent Office
- Date:
- Nov. 9, 1937
- SuDoc number:
- C 21.5/a 2:484/2