Abacuses; Abdominal belts containing built-in speakers for purposes of transmitting music/sounds/educational material to a fetus and built-in pockets in which to carry audio transmitters; Acceleration sensors; Accelerometers; Access control and alarm monitoring systems; Accessories for lighting fixtures, namely, plastic pole with electrical source in protective cover; Accounting machines; Accounting software for use in the construction industry for contract bidding and job accounting; Accumulator boxes; Accumulator jars; Accumulators; Accumulators and batteries; Accumulators, electric; Accumulators, electric, for vehicles; Acetylene regulators; Acid hydrometers; Acidimeters for batteries; Acidity analyzers; Acoustic amplifiers; Acoustic amplifiers for mobile devices; Acoustic baffles sold as a component of loudspeakers; Acoustic conduits; Acoustic couplers; Acoustic coupling devices; Acoustic membranes; Acoustic meters; Fitted plastic films known as skins for covering and providing a scratch proof barrier or protection for electronic devices, namely, MP3 players, mobile telephones, smart telephones, digital cameras, global positioning systems and personal digital assistants; USB cables; A mesh network of temperature probes which measures the internal temperatures of compost piles and wirelessly transmits the temperature data to a computer; voltage, amperage, telephone lines, continuity testers; radio, telephone transmitters