Title:
Spark plug porcelain
Document Type and Number:
United States Patent 1980182
Inventors:
Brewster, Herbert M.
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Publication Date:
11/13/1934
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Referenced by:
Export Citation:
Assignee:
Brewster, Herbert M.
Primary Class:
Other Classes:
174/209, 428/702, 174/138S
International Classes:
H01T13/38; H01T13/20