The portable iBook clamshell laptop (1999) continued the design revolution Apple started with the iMac G3 just a year prior. Both were playful, colorful, and, in Jobs’ words, even "lickable." | Computer History Museum

NASA’s Original Laptop: The GRiD Compass

Flip phones' resurrection with foldable display may beat the Galaxy Fold or Mate X designs

Samsung to Launch 'Clamshell' Foldable Phone in February 2020

Apple is reportedly working on a clamshell design for a foldable iPhone | Digit

Definition of clamshell device

Ulefone Armor Flip: The first clamshell phone of the company will arrive this month! (video) - Gizmochina