US Patent Class 278-- LAND VEHICLES: ANIMAL DRAFT APPLIANCES-- MAIN HEADINGS

US Patent Class 278
LAND VEHICLES: ANIMAL DRAFT APPLIANCES-- Main Headings

		CLASS NOTES
1	DF	MISCELLANEOUS
2	DF	LOAD STARTERS
2.1	DF	STREET CAR
*	DF	DRAFT EQUALIZERS {3}
21	DF	HORSE DETACHERS {6}
33	DF	POLES AND THILLS {5}
52	DF	THILL COUPLINGS {10}
81	DF	THILL-SUPPORTS {4}
86	DF	POLE SUPPORTS {2}
90	DF	WHIFFLETREES {5}
118	DF	TRACE AND THILL OR POLE CONNECTIONS
119	DF	NECK YOKES {2}
126	DF	HOLDBACKS {1}