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- Corporate/Agency Authors:
- Patent Office and Commerce Department
- Publisher:
- Patent Office
- Date:
- July 27, 1937
- SuDoc number:
- C 21.5/a 2:480/4
- Corporate/Agency Authors:
- Patent Office and Commerce Department
- Publisher:
- Patent Office
- Date:
- July 20, 1937
- SuDoc number:
- C 21.5/a 2:480/3
- Corporate/Agency Authors:
- Patent Office and Commerce Department
- Publisher:
- Patent Office
- Date:
- July 13, 1937
- SuDoc number:
- C 21.5/a 2:480/2
- Corporate/Agency Authors:
- Patent Office and Commerce Department
- Publisher:
- Patent Office
- Date:
- July 6, 1937
- SuDoc number:
- C 21.5/a 2:480/1
- Corporate/Agency Authors:
- Patent Office and Commerce Department
- Publisher:
- Patent Office
- Date:
- June 29, 1937
- SuDoc number:
- C 21.5/a 2:479/5
- Corporate/Agency Authors:
- Patent Office and Commerce Department
- Publisher:
- Patent Office
- Date:
- June 22, 1937
- SuDoc number:
- C 21.5/a 2:479/4
- Corporate/Agency Authors:
- Patent Office and Commerce Department
- Publisher:
- Patent Office
- Date:
- June 15, 1937
- SuDoc number:
- C 21.5/a 2:479/3
- Corporate/Agency Authors:
- Patent Office and Commerce Department
- Publisher:
- Patent Office
- Date:
- June 8, 1937
- SuDoc number:
- C 21.5/a 2:479/2
- Corporate/Agency Authors:
- Patent Office and Commerce Department
- Publisher:
- Patent Office
- Date:
- June 1, 1937
- SuDoc number:
- C 21.5/a 2:479/1
- Corporate/Agency Authors:
- Patent Office and Commerce Department
- Publisher:
- Patent Office
- Date:
- May 25, 1937
- SuDoc number:
- C 21.5/a 2:478/4