Abridgment class and index key, showing abridgment classes and index headings to which inventions are assigned in the official publications of the Patent Office.
- Publisher: Printed for H.M.S.O. by Darling & Son
- Print ISSN:
- Electronic ISSN:
- OCLC Number: 45266379
- Subject: Patents Great Britain Indexes Periodicals.
- Subject code: T
- Publication history:
Print Holdings
| Archiving Institution | Program | Holdings Description | Retention |
|---|---|---|---|
| HathiTrust (HATHI) | HTDL | 1927 | permanent |