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Paranormal Forum
Science & Technology
48 years
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<blockquote data-quote="Harte" data-source="post: 157414" data-attributes="member: 443"><p>Originally the metal cans were plated wrought iron soldered shut.</p><p>They were very expensive and became a sort of status symbol</p><p>Wasn't until thin sheet metal cans were made that a hand-operated can opener could even be used.</p><p>Canned food was still far to expensive for the average person even then.</p><p></p><p>IOW, there was no market for an can opener that wouldn't open cans that only the rich could afford.</p><p></p><p>Harte</p></blockquote><p></p>
[QUOTE="Harte, post: 157414, member: 443"] Originally the metal cans were plated wrought iron soldered shut. They were very expensive and became a sort of status symbol Wasn't until thin sheet metal cans were made that a hand-operated can opener could even be used. Canned food was still far to expensive for the average person even then. IOW, there was no market for an can opener that wouldn't open cans that only the rich could afford. Harte [/QUOTE]
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48 years
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