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Authority search results
Authorized headings		Type of heading	Records
Topical Term: Breathing apparatus used for/see from: Protective breathing apparatus Respirators (Earlier heading) Respirators (Protective equipment) Respiratory protective devices see also: Protective clothing (Broader heading) Respiratory organs Protection (Broader heading) Safety appliances (Broader heading)	Details	Topical Term	1 record
Topical Term: Underwater breathing apparatus see also: Breathing apparatus (Broader heading) Deep diving Equipment and supplies (Broader heading)	Details	Topical Term	0 records