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2. Mason jar - Wikipedia

   en.wikipedia.org/wiki/Mason_jar

   The initial form of closure for the glass canning jar was a zinc screw-on cap, the precursor to today's screw-on lids. It usually had a milk-glass liner, but some of the earliest lids may have had transparent glass liners. [8] The cap screwed down onto a rubber ring on the shoulder of the jar, not the lip. [10]

3. John Landis Mason - Wikipedia

   en.wikipedia.org/wiki/John_Landis_Mason

   Mason's innovation was a square-shouldered jar with threaded screw-top, matching lid, and rubber ring for an airtight seal. Mason's easy-to-use, re-usable jars made home canning popular among American settlers, homesteaders, and even in urban homes. Most Mason jars were manufactured by competitors after his patent expired in 1879.

4. Home canning - Wikipedia

   en.wikipedia.org/wiki/Home_canning

   The most common configuration is a Mason jar with a flat lid and screw ring. The lid is generally made of plated or painted steel, with an elastomeric washer or gasket bonded to the underside of the rim. The lid also incorporates a slightly dimpled shape, which acts as an indicator of the vacuum (or lack thereof) inside a sealed jar.

5. Ball Corporation - Wikipedia

   en.wikipedia.org/wiki/Ball_Corporation

   Because the four main components of their core product line of canning jars included glass, zinc, rubber, and paper, the Ball company acquired a zinc strip rolling mill to produce metal lids for their glass jars, manufactured rubber sealing rings for the jars, and acquired a paper mill to fabricate the packaging used in shipping their products.

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   homepage.aol.com/news

   Get breaking news and the latest headlines on business, entertainment, politics, world news, tech, sports, videos and much more from AOL

7. Jar - Wikipedia

   en.wikipedia.org/wiki/Jar

   A jar is a rigid, cylindrical or slightly conical container, typically made of glass, ceramic, or plastic, with a wide mouth or opening that can be closed with a lid, screw cap, lug cap, cork stopper, roll-on cap, crimp-on cap, press-on cap, plastic shrink, heat sealed lidding film, an inner seal, a tamper-evident band, or other suitable means.