Search Results for: Artificial respiration apparatus
husbandry patents (class ) miscellaneous (class / . r) modified earth's surface, e.g., sod, turf, reinforced (class / . f) potting or transplanting machine (class / . p) plant support placing machine, e.g., vine tying (class / . s) debarking, dethorning, or girdling (class / . d) water culture, apparatus
or method (class / r) porous support (class / ) substrate or matrix, e.g., gel, artificial soil (class / s) cultivating chamber (class / ) nutrient recirculation system (e.g., hydroponic system) (class / r) individual support (class / ) mushroom culture (class / ) electroculture, magnetoculture or electrocuting...
https://patents.justia.com/patents-by-us-classification/47
[electrical apparatus for switching or protecting electrical circuits (e.g. switches, fuses, voltage limiters, surge suppressors, junction boxes etc.) for a voltage exceeding volts; similar apparatus (including relays, sockets etc.) for a voltage not exceeding volts; boards, panels, consoles, cabinets
for line telephony including such apparatus for carrier current line systems (includes manufacture of telephone sets, automatic and non automatic switch boards and exchanges; morse or morse type keys, other telegraphic transmitters, digital electronic exchange appartus, morse type recorders, printer...
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