A.c. operated spark ignition apparatus with compensation for changes in the frequency of the a.c. source
United States Patent 3361932

Inventors:
Derek, Campbell Peter
Publication Date:
01/02/1968
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Assignee:
ROTAX LTD
Primary Class:
315/180
Other Classes:
315/241R, 123/627, 123/655, 315/209CD
International Classes:
H02M9/06
Foreign References:
GB749383A
FR884298A
GB896161A