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Testing of Hydraulic Drifters: Preliminary Information (booklet)

National Coal Board Mining Research and Development Establishment

Full title - Testing of Hydraulic Drifters: Preliminary Information. Major Development Committee: Tunnelling. Information Bulletin No. TG/75/2. 4 page booklet in yellow covers.

Pwnc

Diwydiant

Rhif yr Eitem

2001.1/896

Creu/Cynhyrchu

National Coal Board Mining Research and Development Establishment

Dyddiad: 11/1975

Derbyniad

Donation, 1/2/2001

Mesuriadau

Meithder (mm): 297

Lled (mm): 208

Deunydd

cerdyn

papur

Lleoliad

In store

Categorïau

coal 1970s

Nid yw sylwadau ar gael ar hyn o bryd. Ymddiheuriadau am yr anghyfleustra.

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