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United States Patent 2251174
Inventors:
Giulio, Sosso
Publication Date:
07/29/1941
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Download PDF 2251174
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Assignee:
Giulio, Sosso
Primary Class:
89/147
Other Classes:
42/69.030, 89/199
International Classes:
F41A17/72
;
F41A19/43
;
F41A19/45
;
F41A19/48
;
F41A17/00
;
F41A19/00