introduction: the ubiquitous flip mirror questar - the first commercial telescope with two image planes o.t.i. quantum and other flip mirrors with "bucket" housings conception of what later became the versaguider and diaguider conception of the versagonal multi-function flip mirror attachment more new optical...
(class / ) with optical fiber device (class / ) cathode-ray tube (class / ) cabinet or chassis (class / ) miscellaneous (class / ) e subclasses diagnosis, testing or measuring for television systems or their details (epo) (class /e . ) for television cameras (epo) (class /e . ) for digital television...