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- Corporate/Agency Authors:
- Patent Office and Commerce Department
- Publisher:
- Patent Office
- Date:
- May 18, 1937
- SuDoc number:
- C 21.5/a 2:478/3
- Corporate/Agency Authors:
- Patent Office and Commerce Department
- Publisher:
- Patent Office
- Date:
- May 11, 1937
- SuDoc number:
- C 21.5/a 2:478/2
- Corporate/Agency Authors:
- Patent Office and Commerce Department
- Publisher:
- Patent Office
- Date:
- May 4, 1937
- SuDoc number:
- C 21.5/a 2:478/1
- Corporate/Agency Authors:
- Patent Office and Commerce Department
- Publisher:
- Patent Office
- Date:
- Revised May 1, 1937. 1937
- SuDoc number:
- C 21.2:T 67/937
- Corporate/Agency Authors:
- Patent Office
- Publisher:
- Patent Office
- Date:
- Apr. 27, 1937
- SuDoc number:
- C 21.5/a 2:477/4
- Corporate/Agency Authors:
- Patent Office
- Publisher:
- Patent Office
- Date:
- Apr. 20, 1937
- SuDoc number:
- C 21.5/a 2:477/3
- Corporate/Agency Authors:
- Patent Office
- Publisher:
- Patent Office
- Date:
- Apr. 13, 1937
- SuDoc number:
- C 21.5/a 2:477/2
- Corporate/Agency Authors:
- Patent Office
- Publisher:
- Patent Office
- Date:
- Apr. 6, 1937
- SuDoc number:
- C 21.5/a 2:477/1
- Corporate/Agency Authors:
- Patent Office and Commerce Department
- Publisher:
- Patent Office
- Date:
- Mar. 30, 1937
- SuDoc number:
- C 21.5/a 2:476/5
- Corporate/Agency Authors:
- Patent Office and Commerce Department
- Publisher:
- Patent Office
- Date:
- Mar. 23, 1937
- SuDoc number:
- C 21.5/a 2:476/4