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).
Outside patent searches by Claremont Haynes & Co.
| Identifier | ExFiles\Box 147\3\ scan0060 | |
| Date | 14th April 1938 | |
| OUTSIDE PATENT SEARCHES. REPORT BY CLAREMONT HAYNES & CO. Week ending 14th April 1938. SPECIFICATIONS which have become available (Opposition date 30th May 1938) --------- No. Patentee. Title. & 481.715. Marius Jean-Baptiste Change speed Gear with Barbarou. Hydraulic Control. & 481.755. John Hogg Robertson Improvements in Oil Coolers. -------------------- | ||