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Public Domain Mark
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Credit
Improvements in and relating to dental chairs / [Frank Ritter]. Public Domain Mark. Source: Wellcome Collection.
Improvements in and relating to dental chairs / [Frank Ritter].
- Ritter, Frank.
- Date:
- 1897
- Books
- Online
About this work
Publication/Creation
Redhill : Printed for Her Majesty's Stationery Office by Malcomson & Co., Ltd, 1897.
Physical description
4 pages, 2 folded leaves of plates
illustrations
illustrations
Contributors
References note
Patent reference : 1897/20295
Notes
Patent specification
Contains the complete specification
Type/Technique
Languages
Where to find it
Location Status Access Closed stores1897.20295