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on 20 Jul 2002
Research-Cottrell, Inc.
74061584 · 22 May 1990
037
040
...
air purification and waste treatment services,air purification and was...
on 15 Dec 2001
RESEARCH-COTTRELL, INC.
72094097 · 31 Mar 1960
021
Apparatus for Treating Industrial Gases-Namely, Electrostatic Precipit...
on 15 Dec 2001
RESEARCH-COTTRELL, INC.
72094098 · 31 Mar 1960
034
Apparatus for Treating Industrial Gases-Namely, Vortical Gas Cleaners,...
on 24 Oct 1998
RESEARCH-COTTRELL, INC.
74676907 · 19 May 1995
009
equipment for injecting a slurry into a combustion gas to reduce a pol...
on 27 Jul 1998
Research-Cottrell, Inc.
74156394 · 12 Apr 1991
009
equipment for reducing pollutant components of flue gas utilizing inje...
on 30 Mar 1998
RESEARCH-COTTRELL, INC.
72019263 · 14 Nov 1956
023
CENTRIFUGAL APPARATUS FOR SEPARATING SUSPENDED PARTICLES FROM GASES,CE...
on 01 Sep 1997
Research-Cottrell, Inc.
74061610 · 22 May 1990
037
040
...
air purification and waste treatment services,air purification and was...
on 03 Jun 1995
Research-Cottrell, Inc.
74116164 · 19 Nov 1990
011
equipment for injecting a slurry into a combustion gas to reduce a pol...
on 30 Jan 1995
RESEARCH-COTTRELL, INC.
73660946 · 15 May 1987
042
RENDERING ANALYSES, REPORTS, AND ADVICE ON AIR AND WATER POLLUTION CAU...
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