MATHDIALOG
○ Dead · CancelledU.S. federal trademark · Serial No. 74122460 · Reg. No. 1767813
Filing Date
December 11, 1990
Registration Date
April 27, 1993
Class(es)
Class 009, Class 016
Goods & Services
computer programs for use in the field of mathematics
computer instruction manuals for use in mathematics
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