mail order catalog services, featuring goods in the field of scientific educational experiments and apparatuses including computer accessories and software for demonstrating, observing, measuring, and reporting on natural phenomenon as understood by the laws of physics in the fields of mechanics, thermodynamics, waves and sound, optics, electrostatics, electricity and magnetism, electron and X-ray physics, and nuclear physics; consultation services in connection with the purchase and use of said scientific apparatuses

'accessori':18 'apparatus':15,72 'catalog':3 'comput':17 'connect':63 'consult':60 'demonstr':22 'educ':12 'electr':48 'electron':51 'electrostat':47 'experi':13 'featur':5 'field':9,39 'good':6 'includ':16 'law':34 'magnet':50 'mail':1 'measur':24 'mechan':41 'natur':28 'nuclear':58 'observ':23 'optic':46 'order':2 'phenomenon':29 'physic':36,56,59 'purchas':66 'ray':55 'report':26 'said':70 'scientif':11,71 'servic':4,61 'softwar':20 'sound':45 'thermodynam':42 'understood':31 'use':68 'wave':43 'x':54 'x-ray':53

rendering technical assistance and consultation in the fields of physics experiments and demonstrative experiments using scientific apparatuses

'apparatus':17 'assist':3 'consult':5 'demonstr':13 'experi':11,14 'field':8 'physic':10 'render':1 'scientif':16 'technic':2 'use':15

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