5 Free Artworks of Humphrey Pumps

1912modern enginescans from 'rankin kennedyvol v'
Humphrey pump (Rankin Kennedy, Modern Engines, Vol V)
modern engine1912
Humphrey gas pump, plan and elevation (Rankin Kennedy, Modern Engines, Vol V)
modern engine1912
Humphrey gas pump, sectional plan and elevation (Rankin Kennedy, Modern Engines, Vol V)
modern engine1912
Humphrey gas pump, electro-hydraulic generator (Rankin Kennedy, Modern Engines, Vol V)
modern engine1912
Humphrey's gas pump (Rankin Kennedy, Modern Engines, Vol V)
modern engine1912
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