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Class Information
Number: 307/520
Name: Electrical transmission or interconnection systems >
Description:

Sub-classes under this class:

Class Number	Class Name	Patents
307/1	Superimposed unlike currents	20
307/100	Shunting or short circuiting systems	45
307/101	Residual or remanent magnetism control	22
307/102	Stabilized, anti-hunting or antioscillation systems	48
307/103	With line drop compensation	31
307/104	Electromagnet or highly inductive systems	129
307/105	With harmonic filter or neutralizer	197
307/106	Wave form or wave shape determinative or pulse-producing systems	276
307/109	Capacitor	142
307/11	Plural load circuit systems	138
307/111	Nonresponsive-to-frequency-change systems	6
307/112	Switching systems	352
307/145	With current collection or transfer	10
307/146	Unidirectional conductor systems	30
307/147	Conductor arrangements or structure	302
307/149	Miscellaneous systems	141
307/326	Personnel safety or limit control features	218
307/400	Electrets	159
307/401	Nonlinear reactor systems (e.g., saturable)	14
307/43	Plural supply circuits or sources	280
307/650	With nonswitching means responsive to external nonelectrical condition	55
307/89	Anti-induction or coupling to other systems	52
307/9.1	Vehicle mounted systems	688
307/95	Anti-electrolysis	41
307/96	Intermittent regulatory interruption of system	9
307/98	Combined impedance and switch systems	44
307/DIG.1	Data transmitted over power lines	5