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HATSHost Access Transformation Services
HATSHigh Quality Digital Audio Transmission System
HATSHead and Torso Simulator
HATSHoriba Automotive Test Systems (various locations)
HATSHelena Area Transit Service (Helena, MT)
HATSHuntsville Association of Technical Societies
HATSHost Access Transformation Service (IBM)
HATSHarrisburg Area Transportation Study (Pennsylvania; est. 1965)
HATSHumboldt Area Trans Support
HATSHighly Accelerated Thermal Shock
HATSHardened Alternative Trailer System (various organizations)
HATSHoward Area Transit Service
HATSHigh Altitude Training Site (aviation training site located in Colorado)
HATSHanford Action Tracking System
HATSHandheld Analog Test Set
HATSHardware Acceptance Test Specifications
HATSHybrid Automatic Test System
HATSHealth Alert Threat Summary
HATSHemoagglutination Treponema Test for Syphilis
HATSHacker Attempts Tracking System
HATSHardened Tactical Shelter
HATSHouston Area Technical Support - Interagency Law Enforcement Group
References in classic literature ?
But a hatter," protested Hood, "can get money out of his stock of new hats.
Then a little man jumped out of the basket, took off his tall hat, and bowed very gracefully to the crowd of Mangaboos around him.
So it dresses in black coats and trousers, and black hats, and black boots, and, dear me, it is such a very respectable gentleman--to think it could ever have gone gadding about as a troubadour or a knight-errant, dressed in all those fancy colors
It was not until the next Friday that Marilla heard the story of the flower-wreathed hat.
John Smauker, raising his hat gracefully with one hand, while he gently waved the other in a condescending manner.
I am shocked, uncle, to interrupt you again--but these horrid hats of Arnold's are beginning to weigh upon my mind.
The mighty cocked hat was replaced by a modest round one.
she asked, lingering as if to tie her hat more firmly.
Among them, is a stout gentleman in a brown hat, swinging himself to and fro in a rocking-chair on the pavement.
The roughs had also fled at the appearance of Peterson, so that he was left in possession of the field of battle, and also of the spoils of victory in the shape of this battered hat and a most unimpeachable Christmas goose.
At the same moment the bird fluttered down upon the hat and once more sat snugly on her eggs.
But the hat was not a military hat, the man was not in uniform and had not a martial bearing.