21849
Verifiers
Verification of the REGON number in Poland
Verifier allows you to validate entered REGON number
Long description
see similar
76212
Verifiers
Verification ISBN preview
Jak sprawdzić numer ISBN?
Jak zweryfikować numer ISBN?
Jak zweryfikować numer ISBN?
Calculator allows you to verify the ISBN number entered.
63111
Verifiers
Verification of the social security number in Poland
It presents data deriving from the unique social security number, such as date of birth, sex, serial number and check its correctness.
53102
Verifiers
Verifier numbers EAN-13 preview
Verifier numbers EAN-13
Calculator allows you to verify the number entered EAN-13.
Users also viewed
14950
Legal
Legal calculator
Calculates the effective date of the act, published in the official journal.
1025264
Building
Insulation of wall
Jak policzyć izolację ścian?
Calculator allows you to calculate the amount of insulation panels needed to cover the walls of the building using the "light wet" or "dry light" methods.
46112
Physical
Coreless coil inductance
The calculator calculates the inductance of the coil without core on the basis of the given coil length, diameter and number of turns.
1035948
Building
Calculator VAT refund for building materials
The calculator calculates the amount of VAT that can be refunded in respect of incurred expenses associated with the purchase of construction materials.