Patent application record for rotary pumps by J.Tonge.
| Identifier | ExFiles\Box 147\1\ scan0128 | |
| Date | 15th March 1937 guessed | |
| No. Name of Patentee. Title. 5105. J.Tonge Rotary pumps etc., ---------------------- It should be noted that it is not possible to obtain further information regarding the above until or unless the applications are completed and published. | ||
From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).