1862 London Exhibition: Catalogue: Class I.: Patent Metallic Fuse Co
From Graces Guide
264. PATENT METALLIC FUSE COMPANY, Wadebridge.
Metallic safety-fuses for blasting; waterproof, and will not "hang fire."
These fuses are adapted for all blasting purposes: they are more economical, surer in action, and afford greater protection to life and limb than the pervious fuses, which often explode uncertainly, and spoil by damp. They were tested in blasting operations before the Miners' Association of Cornwall and Devon at the Royal Cornwall Polytechnic Exhibition, and obtained the Society's prize medal.
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