Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
Modern mining methods (booklet)
24 pages : illustrated throughout Content summary :- Advantages and description of the 'Seaman' chock self-advancing support system
Pwnc
Diwydiant
Rhif yr Eitem
1992.336/23
Creu/Cynhyrchu
Gullick Ltd.
Dyddiad:
Derbyniad
Collected officially, 14/12/1992
Mesuriadau
Meithder
(mm): 280
Lled
(mm): 215
Deunydd
papur
Lleoliad
In store
Dosbarth
advertising and promotionNid yw sylwadau ar gael ar hyn o bryd. Ymddiheuriadau am yr anghyfleustra.