Srientitic American, May 9g, 1891. | 301 … FIRE FELT. NEw ILLUSTRATED THE NEW NON-CONDUCTING MATERIAL Experimental Science is a Flexible Felt Made of Pure Asbestos, in a finely divided fibrous state, indestructible by heat and SCIENTIFIC CATALOGUE unexcelled asa Non-Conductor. U. 8. Navy tests show Send for Samples. mailed free to any…
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