Title:
Field protective mask
United States Patent 2898908


Inventors:
Eugene, Sovinsky
Application Number:
US42145854A
Publication Date:
08/11/1959
Filing Date:
04/06/1954
Assignee:
Eugene, Sovinsky
Primary Class:
Other Classes:
128/206.15, 128/206.17
International Classes:
A62B18/00; A62B18/02
View Patent Images:
US Patent References:
2811967Mask with dust filter1957-11-05
2775967Respirator1957-01-01
2751904Respirator1956-06-26
2744524Fume respirator with cannister having offset walls and ring mounting means1956-05-08
2684066Pressure regulator structure for pressure-type gas masks1954-07-20
2671528Air purifier1954-03-09
2671445Gas mask and helmet1954-03-09
2665686Face mask1954-01-12
2591953Face mask for protection against dust and the like1952-04-08
2534720Respirator1950-12-19
2466127Outlet valve-diaphragm assembly1949-04-05
2038071Fluid treating device1936-04-21
1975797Gas mask1934-10-09
1966553Absorbent briquette1934-07-17
Foreign References:
FR31977E1927-08-27