other marketing solutions justia patents electric lamp or space discharge component or device manufacturing patents (class ) electric lamp or space discharge component or device manufacturing patents (class ) process (class / ) repairing, converting or salvaging (class / ) with testing or adjusting...
" (a dual-mode french military field optical telegraph that could use either lantern or sunlight) were equipped with clockwork heliostats. [ ] the mangin apparatus with heliostat was still in service in . [ ] [ ] [ ] proposals to automate both the modulation of the sunbeam (by clockwork) and the detection...
station, waterloo station is a cold, draughty unheated area which is not ideal for customers using the bar during the colder months. the cabin required [...] the post heating a bar with long wave radiant heaters appeared first on bn thermic. a new underfloor heating thermostat – so much for so little...