Means for safeguarding electric igniters of blasting detonators against accidental firing
United States Patent 2408125

Inventors:
Jay, Rolfes Hans
Publication Date:
09/24/1946
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Assignee:
Jay, Rolfes Hans
Primary Class:
361/248
Other Classes:
361/212, 102/202.200, 361/126, 102/202.300
International Classes:
F42B3/185; F42B3/00