Assignment of letters patent between Thomas David Jones, William Alfred Terrell, Percy Alfred Lewis and Samuel Flook and the Trustees of the Monmouthshire and South Wales Coal Owners’ Association. The patents referred to in the assignment relate to the treatment of dust laden air and the suppression and reduction of dust in coal cutting (jib-spray, coal-cutter spray and water-interlock).
Assignment of letters patent
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- ReferenceGB 214 DNCB/15/1/4/3
- Dates of Creation4 Dec 1944
- Physical Description1 paper, 1 envelope
Scope and Content
Custodial History
Previous reference: 1991/548/2/23