![Grinnell - Vintage 1947 - B47 - 165 - Sprinkler Head 1/2" NPT Brass - Lot of 10 | eBay](https://i.ebayimg.com/images/g/hbQAAOSw691jfjT4/s-l1200.webp "Grinnell - Vintage 1947 - B47 - 165 - Sprinkler Head 1/2" NPT Brass - Lot of 10 | eBay")
Grinnell - Vintage 1947 - B47 - 165 - Sprinkler Head 1/2" NPT Brass - Lot of 10 | eBay
Grinnell Automatic Sprinkler Fire Alarm Bell Complete Works! - Old School Warehouse
History of Fire Sprinkler Systems - RAD Fire Spinklers
![ANTIQUE VINTAGE GRINNELL 1916 155 "A" FRAME BRASS FIRE SPRINKLER HEAD | eBay](https://i.ebayimg.com/images/g/cKIAAOSwmVdjmk1h/s-l1200.jpg "ANTIQUE VINTAGE GRINNELL 1916 155 "A" FRAME BRASS FIRE SPRINKLER HEAD | eBay")
ANTIQUE VINTAGE GRINNELL 1916 155 "A" FRAME BRASS FIRE SPRINKLER HEAD | eBay
1926 Grinnell B | Fire sprinkler, Fire systems, Fire sprinklers
1966 Grinnell Quartzoid Upright Fire Sprinkler Head | eBay
Grinnell 'Duraspeed' soldered fire sprinkler head | Science Museum Group Collection
Tyco SimplexGrinnell on Twitter: "#TBT to this antique Grinnell fire sprinkler! DYK that Frederick Grinnell patented the first 'sensitive' automatic sprinkler in 1881? https://t.co/iywNXc7sLA" / Twitter
original and intact vintage american industrial grinnell company "automatic sprinkler" exterior building facade alarm bell with distressed red paint finish
![ANTIQUE VINTAGE GRINNELL 1914 155 "A" FRAME BRASS FIRE SPRINKLER HEAD | eBay](https://i.ebayimg.com/images/g/G~EAAOSwFTVdSE8S/s-l1200.webp "ANTIQUE VINTAGE GRINNELL 1914 155 "A" FRAME BRASS FIRE SPRINKLER HEAD | eBay")
ANTIQUE VINTAGE GRINNELL 1914 155 "A" FRAME BRASS FIRE SPRINKLER HEAD | eBay
Grinnell Fire Alarm Photograph by David Lee Thompson - Pixels
Antiques, Art, Vintage
Grinnell fire sprinkler head | Science Museum Group Collection
![Grinnell - Vintage 1947 - B47 - Sprinkler Head - 1/2" NPT Brass | eBay](https://i.ebayimg.com/images/g/ODkAAOSwDANhshvZ/s-l1600.jpg "Grinnell - Vintage 1947 - B47 - Sprinkler Head - 1/2" NPT Brass | eBay")
Grinnell - Vintage 1947 - B47 - Sprinkler Head - 1/2" NPT Brass | eBay
![Grinnell Upright Fire Sprinkler Head SSU-3-458 [Lot of 5] NOS – governmenttransitsurplus.com](https://governmenttransitsurplus.com/cdn/shop/products/img7348_40661911-0077-4164-ba7c-b10e03627b39_1024x1024@2x.jpg?v=1650386037 "Grinnell Upright Fire Sprinkler Head SSU-3-458 [Lot of 5] NOS – governmenttransitsurplus.com")
Grinnell Upright Fire Sprinkler Head SSU-3-458 [Lot of 5] NOS – governmenttransitsurplus.com
Grinnell A SSU 22S2 Fire Sprinkler Head Upright 1/2'' NPT Lot of 2 – BME Bearings and Surplus
![Grinnell Upright Sprinkler Head SSU-2 [Lot of 3] NOS – governmenttransitsurplus.com](https://governmenttransitsurplus.com/cdn/shop/products/20220630125126a_1024x1024@2x.jpg?v=1657216926 "Grinnell Upright Sprinkler Head SSU-2 [Lot of 3] NOS – governmenttransitsurplus.com")
Grinnell Upright Sprinkler Head SSU-2 [Lot of 3] NOS – governmenttransitsurplus.com
Manufacturer: Grinnell, 1882 | Fire sprinkler system, Fire protection, Fire sprinkler
Tyco SimplexGrinnell on X: "#TBT to these four vintage Grinnell Duraspeed brass fire sprinkler heads. Did you know we pioneered the first automatic sprinkler in 1881? https://t.co/Fqubi1mqep" / X
A&D Flexographic, Inc. - GRINNELL QUARTZOID SPRINKLER ** LOT OF 6 ** SSU-3 458A NOS (Powered by CubeCart)
NFSA on Twitter: "#FastestwaterFriday Fact: 1881; Frederick Grinnell patents his #firesprinkler system. The 'Grinnell Sprinkler' later went on to be considered the first practical automated sprinkler system. https://t.co/2q4pBE5R3B" / Twitter
Discount Promotion Fire Sprinkler Heads Grinnell A SSU 22S2 Fire Sprinkler Head Upright 1/2'' NPT 1995 286 141 New Era Memorial Gift for Birthday, Christmas
Fire Sprinkler Heads — 1933 Grinnell picker trunk model. Used in duct...
1930 Grinnell Fire Sprinkler | Fire sprinkler system, Fire sprinkler, Sprinkler
Inevitability of the Fire Sprinkler
![ANTIQUE VINTAGE GRINNELL 1910 155 "A" FRAME BRASS FIRE SPRINKLER HEAD | eBay](https://i.ebayimg.com/images/g/rfwAAOSwiTVjmkyH/s-l1600.jpg "ANTIQUE VINTAGE GRINNELL 1910 155 "A" FRAME BRASS FIRE SPRINKLER HEAD | eBay")
ANTIQUE VINTAGE GRINNELL 1910 155 "A" FRAME BRASS FIRE SPRINKLER HEAD | eBay
