Hewlett Packard 67 - clear case
Hewlett Packard 67 clear case and normal production versions. The clear case enabled HP engineers to see the internals, as well as test case production techniques to ensure that imperfections (bubbles and the like) did not form in the case during the production process.
The HP67 was an improvement of the HP65, with more memory, more defined keys, and improved programming ability.
Hewlett Packard 67 - clear case
Hewlett Packard 67 clear case and normal production versions. The clear case enabled HP engineers to see the internals, as well as test case production techniques to ensure that imperfections (bubbles and the like) did not form in the case during the production process.
The HP67 was an improvement of the HP65, with more memory, more defined keys, and improved programming ability.