KEYSTONE AMERICAN
○ Dead · ExpiredU.S. federal trademark · Serial No. 72454562 · Reg. No. 0991203
Filing Date
April 16, 1973
Registration Date
August 20, 1974
Class(es)
Class 019, Class 016
Goods & Services
SLATE PRODUCTS-NAMELY, TILE, STRUCTURAL PIECES, ROOFING AND FLAGGING
SLATE BLACKBOARDS
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