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- Corporate/Agency Authors:
- Patent Office and Commerce Dept.
- Publisher:
- Patent Office
- Date:
- [1955.]
- SuDoc number:
- C 21.15:953/rev.notice 1/errata
- Corporate/Agency Authors:
- Patent Office and Commerce Dept.
- Publisher:
- Patent Office
- Date:
- [1952.]
- SuDoc number:
- C 21.15:949/rev.pages2
- Corporate/Agency Authors:
- Patent Office and Commerce Dept.
- Publisher:
- Patent Office
- SuDoc number:
- C 21.15:949/rev.pages1