ARMSTRONG HENRY H ASSOCIATES INC


1706 ALLEGHENY TOWER, 625 STANWIX STREET, PITTSBURGH PA 15222, 4124711551


1999 SEC Filings

ARMSTRONG HENRY H ASSOCIATES INC, 13F-HR, 1999-11-05
ARMSTRONG HENRY H ASSOCIATES INC, 13F-HR, 1999-07-30
ARMSTRONG HENRY H ASSOCIATES INC, 13F-HR/A, 1999-07-22
ARMSTRONG HENRY H ASSOCIATES INC, 13F-HR, 1999-05-12


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