Hydraulic Services Inc.
Hydraunit Venture
Hydroair a Unit of ITT Industries
Hydrodyne Development Company
Hydromatik GmbH
Hydronix, Inc.
Hydroperfect International
Hydroperfect International H. P. I.
Hydrovane Compressor Company Limited
Hydrowatt Systems Limted
Hyeon Seong Yeol
Hyeon Seong-Yeol
Hyland George J.
Hynd Ike W.
Hynes Eleanor M.
Hynes Maurice A.
Hyodo Akihiko
Hypro Corporation
Hytec AB
HyVair Corporation