A - Human Necessities – 62 – B
Patent
A - Human Necessities
62
B
2/45
A62B 7/10 (2006.01) A62B 18/08 (2006.01)
Patent
CA 1107452
A B S T R A C T A disposable valveless chemical cartridge respirator for filtration of vinyl chloride monomer having an end of service life indicator is disclosed.
289674
Anders Leon W.
Kohler Gunter A.
Mcallister Jerome W.
Ord James A. Jr.
Minnesota Mining And Manufacturing Company
Smart & Biggar
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