H. W. Johns Manufacturing Co. · H. W. Johns Mfg Co. · leaf 16
H. W. JOHNS MANUFACTURING CO. 15 ASBESTO=SPONGE MOULDED COVERING. (patented.) … This form of Covering is offered as the most durable and effective Moulded Non-Conducting Covering yet pro- duced. It combines the advantages of our Asbesto-Sponge Cement Felting in a portable form, is absolutely fire-proof, and is adapted for highest steam pressure. It is supplied in sections of…
Asbestos · Insulation · Paint · Roofing
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