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Class Information
Number: 307/257
Name: Electrical transmission or interconnection systems >
Description:

Sub-classes under this class:

Class Number	Class Name	Patents
307/1	Superimposed unlike currents	73
307/100	Shunting or short circuiting systems	50
307/101	Residual or remanent magnetism control	28
307/102	Stabilized, anti-hunting or antioscillation systems	62
307/103	With line drop compensation	46
307/104	Electromagnet or highly inductive systems	321
307/105	With harmonic filter or neutralizer	233
307/106	Wave form or wave shape determinative or pulse-producing systems	321
307/109	Capacitor	190
307/11	Plural load circuit systems	213
307/111	Nonresponsive-to-frequency-change systems	6
307/112	Switching systems	432
307/145	With current collection or transfer	23
307/146	Unidirectional conductor systems	32
307/147	Conductor arrangements or structure	364
307/149	Miscellaneous systems	206
307/326	Personnel safety or limit control features	272
307/400	Electrets	168
307/401	Nonlinear reactor systems (e.g., saturable)	17
307/43	Plural supply circuits or sources	414
307/650	With nonswitching means responsive to external nonelectrical condition	57
307/89	Anti-induction or coupling to other systems	61
307/9.1	Vehicle mounted systems	1,018
307/95	Anti-electrolysis	44
307/96	Intermittent regulatory interruption of system	12
307/98	Combined impedance and switch systems	60
307/DIG.1	Data transmitted over power lines	14