@sur_27A 1981 patent called the Bath Mouthpiece lets you breathe safely in a hotel or house fire when you can't escape the room.
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Bath Mouthpiece patent 1981
รูปภาพโดย @sur_27· Jul 5, 2026· Science
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This is a technical drawing of a person using a device to clear a toilet. The person is crouching and holding a flexible tube to their mouth, with the other end inserted into the toilet bowl. The drawing style is schematic and instructional, typical of patent illustrations. The focus is on the mechanism and its operation.
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