CPC Subgroup
A61J 19/02 Sputum flasks
Full Title
Devices for receiving spittle, e.g. spittoons (for dentists A61C17/14) > Sputum flasks
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A61J 19/02 Devices for receiving spittle, e.g. spittoons (for dentists A61C17/14) > Sputum flasks