perforation

Found 2 Results for perforation.

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1. Postage Stamps
Other essential items of equipment are a magnifying glass, a perforation gauge, and a watermark detector. More than any other hobby, perhaps, stamp collecting leads you into a new and very wide world.
http://www.fun-home-projects.com/collecting/​postage_stamps.html

2. Clogged Drains
In severe cases, circulatory failure, esophageal perforation and peritonitus or pneumonia may follow. First aid: If ingested, give large volumes of a 1:3 vinegar and cold water solution, or give copious drinks of lemon juice.
http://www.fun-home-projects.com/home_ownership/​safety_and_special_interest/​clogged_drains.html

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