The widely known fold-down bed named after its inventor, William Lawrence Murphy, started as a space-saving idea and has since evolved into a pop culture fixture.  Photo 3 of 5 in The Surprising Sources of Space-Saving Inventions

The Surprising Sources of Space-Saving Inventions

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The widely known fold-down bed named after its inventor, William Lawrence Murphy, started as a space-saving idea and has since evolved into a pop culture fixture.