Breathing apparatus
United States Patent 2456130
US Patent References:
/0262577.html
- - 0262577

/0439093.html
- - 0439093

Self-contained breathing apparatus
- - 1532654

Swimmer's vest
- - 1547097

Vest belt
- - 1558228


Inventors:
Lambertsen, Christian J.
Publication Date:
12/14/1948
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Assignee:
Lambertsen, Christian J.
Primary Class:
128/202.190
Other Classes:
128/205.220, 128/205.120, 128/201.190, 68/205E, 128/205.170
International Classes:
B63C11/24; B63C11/02
US Patent References:
1625419Breathing apparatus
1647677Sporting device and life preserver
1739112
1878474Life-saving gear
1938483Respiration apparatus
1984118Breathing appliance
1984119Breathing appliance
2001673Submarine lifesaving outfit
2074219Gas mask
2199690Mask
2226564Life preserver
2238759Diving apparatus
2324716Respiratory apparatus
2359008Exhaling valve
2362643Breathing apparatus for use under water
Foreign References:
GB190513604A
IT380494B
DE655457C