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    AUSTRALIA

  1. HAWKER DE HAVILLAND
  2. HUGHES

  3. AUSTRIA

  4. HAFNER (Austria/UK)
  5. HB
  6. HB FLUGTECHNIK
  7. HIRTENBERG
  8. HOAC
  9. HOPFNER

  10. BRAZIL

  11. HELIBRAS

  12. CANADA

  13. HELICOP-JET (France, Canada)
  14. HUSKY
  15. HUSSEY

  16. CHINA

  17. HAI
  18. HAIG (Harbin)
  19. HAIG (Hongdu)
  20. HAMC (Harbin)
  21. HMDH (Nanchang, Jiangxi)
  22. HTATC (Huzhou, Zhejiang)

  23. CZECHOSLOVAKIA

  24. HODEK

  25. DENMARK

  26. HAERENS

  27. EGYPT

  28. HELIOPOLIS AIR WORKS
  29. HELWAN AIR WORKS

  30. FINLAND

  31. HEINONEN

  32. FRANCE

  33. HANRIOT
  34. HELICOP-AIR
  35. HELICOP-JET (France, Canada)
  36. HENNION
  37. HERMESPACE
  38. HIRSCH
  39. HUMBERT
  40. HUREL-DUBOIS
  41. HYDROPLUM

  42. GERMANY

  43. HAESSLER-VILLINGER
  44. HALBERSTADT
  45. HALLE
  46. HAMBURGER
  47. HAMBURGER (since 1955)
  48. HANNOVER
  49. HANSA-BRANDENBURG
  50. HANSEATISCHE
  51. HAVERTZ
  52. HEINKEL
  53. HEINKEL (since 1935)
  54. HEINKEL (since 1955)
  55. HELICOPTER TECHNIK MÜNCHEN
  56. HELITRANS
  57. HENSCHEL
  58. HENSCHEL (since 1954)
  59. HIGH PERFORMANCE
  60. HIRTH
  61. HORTEN
  62. HUFFER

  63. GREECE

  64. HAI

  65. HUNGARY

  66. HALLEY

  67. INDIA

  68. HAL
  69. HAL MiG COMPLEX

  70. ITALY

  71. HELISPORT

  72. JAPAN

  73. HAGIWARA
  74. HIRO
  75. HITACHI

  76. KOREA, SOUTH

  77. HAN JIN
  78. HYUNDAI

  79. NETHERLANDS

  80. HOLLANDAIR

  81. NORWAY

  82. HØNNINGSTAD

  83. RUSSIA

  84. HAKKEL

  85. SOUTH AFRICA

  86. HELICOPTER MANUFACTURING

  87. SPAIN

  88. HERETER
  89. HISPANO-SUIZA

  90. SWITZERLAND

  91. HÄFELI

  92. UNITED KINGDOM

  93. HAFNER (Austria/UK)
  94. HALTON
  95. HAMPSHIRE
  96. HANDASYDE
  97. HANDLEY PAGE
  98. HANTS & SUSSEX
  99. HARRIS & SHELDON
  100. HARTMAN
  101. HAWKER
  102. HAWKER AIRCRAFT LTD
  103. HAWKER SIDDELEY
  104. HELMY
  105. HENDERSON
  106. HENDY
  107. HESTON
  108. HEWLETT & BLONDEAU
  109. HILLSON
  110. HINKLER
  111. HMPAC
  112. HOOPER
  113. HORDERN RICHMOND
  114. HUMBER
  115. HUNTING
  116. HUNTING FIRECRACKER
  117. HUNTING PERCIVAL

  118. UNITED STATES

  119. HAIG
  120. HAINES
  121. HALL
  122. HALL, ROBERT
  123. HALL, THEODORE P.
  124. HALPIN
  125. HALPIN/HUF
  126. HALSMER
  127. HAMILTON AERO MANUFACTURING COMPANY
  128. HAMILTON AEROSPACE
  129. HAMILTON AIRCRAFT COMPANY
  130. HAMMOND
  131. HANNAFORD
  132. HAPI
  133. HARLOW
  134. HARTMANN
  135. HATZ
  136. HAUFE
  137. HAWK
  138. HAWK INDUSTRIES INC.
  139. HAWKER
  140. HAYDEN
  141. HAYES
  142. HEADBERG
  143. HEATH
  144. HECC
  145. HEGY
  146. HEINRICH
  147. HEINZ
  148. HELI AIR
  149. HELICOM
  150. HELICOPTER ENGINEERING
  151. HELIO
  152. HELIPARTS
  153. HELITECH
  154. HELTON
  155. HENSLEY
  156. HERRICK
  157. HERSE
  158. HEUBERGER
  159. HIGGINS
  160. HILD MARSHONET
  161. HILLBERG
  162. HILLER
  163. HILLER AVIATION INC.
  164. HILL-KEMMAN
  165. HOCKADAY
  166. HOCKER
  167. HOEFELMANN
  168. HOFFMAN
  169. HONDA
  170. HONEY
  171. HOPPI-COPTERS
  172. HORACE KEANE AEROPLANES
  173. HORN
  174. HOSLER
  175. HOWARD
  176. HOWARD AERO INC.
  177. HPA
  178. HPK
  179. HRUBY
  180. HUEY/BULMER
  181. HUFF-DALAND
  182. HUGHES
  183. HUGHES HELICOPTERS
  184. HUGO
  185. HUNT
  186. HUNTINGDON
  187. HURD
  188. HURLEBURT
  189. HURRY
  190. HUTCHINSON
  191. HYNES

  192. INTERNATIONAL

  193. HELI-EUROPE