0000950129-97-002421 10-Q 3 19970430 19970616 NASD POWELL INDUSTRIES INC 0000080420 3613 880106100 NV 1031 10-Q 34 001-12488 97624442 8550 MOSLEY DR POST OFFICE BOX 12818 HOUSTON TX 77075 7139446900 8550 MOSLEY DRIVE P O BOX 12818 8550 MOSLEY DRIVE P O BOX 12818 HOUSTON TX 77075 PROCESS SYSTEMS INC 19780926 10-Q 1 000095012997002421-001-seq1-10-q.txt POWELL INDUSTRIES, INC. - DATED 04/30/97 EX-3.3 2 000095012997002421-002-seq2-ex-3-3.txt CERTIFICATE OF AMEND. OF ARTICLES OF INCORPORATION EX-27 3 000095012997002421-003-seq3-ex-27.txt FINANCIAL DATA SCHEDULE