Lantern slides and films relating to an application by E. & L. Dreyer to revoke patent 91258, 'Improvements in or relating to devices for spreading granular or powdery material'.

PART OF:: Papers of patent agent and engineer Sir Dugald Clerk, relating to gas engines and patent investigations

Made:: 1875-1944

part of archive:: Papers of patent agent and engineer Sir Dugald Clerk, relating to gas engines and patent investigations

maker:: Marks & Clerk

Details

Extent:: c. 100 slides and 3 reels of film

Identifier:: MAC/3

Access:: Open Access

rights:: Copies may be supplied in accordance with current copyright legislation and Science Museum Group terms and conditions

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Papers of patent agent and engineer Sir Dugald Clerk, relating to gas engines and patent investigations