PENCHLOR FCC
CONSTRUCTION CEMENT OF THE HARDENED SILICATE TYPE AND ALSO FOR CERTAIN INGREDIENTS THEREFOR-NAMELY, A MIXTURE OF FILLER AND SETTING AGENT ADAPTED TO BE ADMIXED BY THE USER WITH A SILICATE SOLUTION TO PRODUCE A MORTAR FOR FORMING SAID HARDENED SILICATE CEMENT
Expired · January 5, 1952 · 71623256 ·
