1930 Grinnell Fire Sprinkler | Fire sprinkler system, Fire sprinkler, Sprinkler
Grinnell type C fire sprinkler head | Science Museum Group Collection
Grinnell Sprinkler Head 212 Degree Pendant Spray Type 1/2" Conn NEW | eBay
Vintage Grinnell Upright Sprinkler SSU-3 458A FM | eBay
Antique Fire Sprinkler Water Pressure Gauge Grinnell Co Brass 1935 Rat Rod VTG | Westwood Lighting Co
3 Vintage Grinnell Duraspeed Brass Fire Sprinkler Heads +1 Bonus Grinnell Head | eBay
1912 Grinnell Model A | Fire sprinkler system, Sprinkler, Fire sprinkler
Grinnell - Vintage 1947 - B47 - Sprinkler Head - 1/2" NPT Brass | eBay
Grinnell fire sprinkler head | Science Museum Group Collection
The Evolution of Fire Sprinklers: A Timeline of Innovations
1894 Grinnell | Fire sprinkler, Fire protection, Firefighter photography
Grinnell quartzoid bulb sprinkler, 1927 | Science Museum Group Collection
Grinnell 'Duraspeed' soldered fire sprinkler head | Science Museum Group Collection
Collecting Fire Sprinkler Heads - 325° Grinnell Quartzoid upright with manual pull tab. Special purpose head combining a standard automatic sprinkler with a mechanical release tab which can be remotely operated by
Fire Sprinkler Heads — 1933 Grinnell picker trunk model. Used in duct...
GRINNELL Mobile US / Canada / Mexico | Fire Protection Literature
VINTAGE Grinnell B Duraspeed Fire Sprinkler Head
A history of fire sprinklers
Harkness fire sprinkler head (similar to Grinnell sprinkler) | Science Museum Group Collection
New Old Stock GRINNELL A SSP 22S2 Pendant Sprinkler Head 1/2" 286 F / 141 C | eBay
original and intact vintage american industrial grinnell company "automatic sprinkler" exterior building facade alarm bell with
5) Grinnell Fire Sprinkler Coupling Clamps 2” / 60.3mm 577 | eBay
