Scientific, nautical, photographic, optical, signaling, measuring, checking as in supervision, life-saving apparatus and instruments, namely, telephones, punch clocks; time recording devices, namely, time clocks; weighing equipment, namely, scales and balances; graduated rulers; electronic pocket translators; neon signs; electronic notice boards; transparency projection apparatus; kilometer recorders in the nature of odometers for vehicles; telescopes; mechanisms for counter operated apparatu...

digital fiber-optic data links for use in connecting computers for the purpose of transmitting and receiving data