| http://www.w3.org/ns/prov#value | - 7/102 X 3,435,839 4/1969 Elder 137/102 FOREIGN PATENTS OR APPLICATIONS 1,190,467 3 1959 France 137/63 R 4 Primary Examiner-Martin P. Schwadron 57 ABSTRACT A housing with flow passages and valve members actuated by low pressure is particularly adapted for respirating apparatus or other breathing apparatus.
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