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Bell (Vacuum) Jar with stand base and with Electric Bell

89,90 111,48 με ΦΠΑ 620201
Bell (Vacuum) Jar with stand base and with Electric Bell Bell (Vacuum) Jar with stand base and with Electric Bell
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Bell Jar (Vacuum) with Electric Bell and plastic stand

39,90 49,48 με ΦΠΑ 620205
Bell Jar (Vacuum) with Electric Bell and plastic stand Bell Jar (Vacuum) with Electric Bell and plastic stand This apparatus
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Bell Jar 180*250mm

19,90 24,68 με ΦΠΑ 621200
This Bell Jar usually used in combination with an electric bell, a metal base and a pump to demonstrate that
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Door Bell Kit

6,85 8,49 με ΦΠΑ 405129
Functional model with two coils for connection to 4.5v battery. Pack with all parts and instructions.
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Electric Bell

12,90 16,00 με ΦΠΑ 520625
Electric Bell On wooden base. With battery holder. Can operate with power supply 6V DC or with batteries.