| http://www.w3.org/ns/prov#value | - In the present invention, such as a sheet of a thermo-setting resin member can be used as a sealing member during a sealing step, and, through melting of a surface or the whole of the resin and hardening by heating, a quartz oscillator or resonator and a printed circuit board can be sealed preventing the sealing member from intruding a space portion between the quartz oscillator or resonator and t
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