US Patent Class 307-- ELECTRICAL TRANSMISSION OR INTERCONNECTION SYSTEMS-- MAIN HEADINGS

US Patent Class 307
ELECTRICAL TRANSMISSION OR INTERCONNECTION SYSTEMS-- Main Headings

		CLASS NOTES
1	DF	SUPERIMPOSED UNLIKE CURRENTS {3}
9.1	DF	VEHICLE MOUNTED SYSTEMS {1}
11	DF	PLURAL LOAD CIRCUIT SYSTEMS {8}
43	DF	PLURAL SUPPLY CIRCUITS OR SOURCES {14}
400	DF	ELECTRETS
401	DF	NONLINEAR REACTOR SYSTEMS (E.G., SATURABLE) {11}
326	DF	PERSONNEL SAFETY OR LIMIT CONTROL FEATURES {2}
89	DF	ANTI-INDUCTION OR COUPLING TO OTHER SYSTEMS {2}
95	DF	ANTI-ELECTROLYSIS
96	DF	INTERMITTENT REGULATORY INTERRUPTION OF SYSTEM {1}
98	DF	COMBINED IMPEDANCE AND SWITCH SYSTEMS {1}
100	DF	SHUNTING OR SHORT CIRCUITING SYSTEMS
101	DF	RESIDUAL OR REMANENT MAGNETISM CONTROL
102	DF	STABILIZED, ANTI-HUNTING OR ANTIOSCILLATION SYSTEMS
103	DF	WITH LINE DROP COMPENSATION
104	DF	ELECTROMAGNET OR HIGHLY INDUCTIVE SYSTEMS
105	DF	WITH HARMONIC FILTER OR NEUTRALIZER
106	DF	WAVE FORM OR WAVE SHAPE DETERMINATIVE OR PULSE-PRODUCING SYSTEMS {2}
109	DF	CAPACITOR {1}
111	DF	NONRESPONSIVE-TO-FREQUENCY-CHANGE SYSTEMS
650	DF	WITH NONSWITCHING MEANS RESPONSIVE TO EXTERNAL NONELECTRICAL CONDITION {3}
112	DF	SWITCHING SYSTEMS {5}
145	DF	WITH CURRENT COLLECTION OR TRANSFER
146	DF	UNIDIRECTIONAL CONDUCTOR SYSTEMS
147	DF	CONDUCTOR ARRANGEMENTS OR STRUCTURE {1}
149	DF	MISCELLANEOUS SYSTEMS {5}