Legal notice

Here you will find all information about the mandatory data.


Information pursuant to § 5 TMG
Magnetfabrik Bonn GmbH
Dorotheenstraße 215
53119 Bonn

Company information
CEO (Geschäftsführer): Dr. Martin Grönefeld
VATIN/USt-IdNr.: DE122117630
Tel.: +49 228 729050
Fax: +49 (0)228 72905-37

Commerical register number: HRB 4774
Registration court: Amtsgericht Bonn
Responsible for the content is according to § 55 Abs. 2 Rundfunkstaatsvertrag (RStV): Dr. Martin Grönefeld

Consumer dispute participation
The European Commission provides a platform for out-of-court online dispute resolution (OS Platform) which can be found at is callable.
We are neither obliged nor willing to participate in a dispute resolution procedure before a consumer arbitration board. Our e-mail address is:

For reasons of easier readability, gender-specific differentiation is not consistently taken into account on this website. The corresponding terms apply to all sexes in the interests of equal treatment.

Liability for Contents
As service providers, we are liable for own contents of these websites according to Paragraph 7, Sect. 1 German Telemedia Act (TMG). However, according to Paragraphs 8 to 10 German Telemedia Act (TMG), service providers are not obligated to permanently monitor submitted or stored information or to search for evidences that indicate illegal activities.

Legal obligations to removing information or to blocking the use of information remain unchallenged. In this case, liability is only possible at the time of knowledge about a specific violation of law. Illegal contents will be removed immediately at the time we get knowledge of them.

Liability for Links
Our offer includes links to external third party websites. We have no influence on the contents of those websites, therefore we cannot guarantee for those contents. Providers or administrators of linked websites are always responsible for their own contents.

The linked websites had been checked for possible violations of law at the time of the establishment of the link. Illegal contents were not detected at the time of the linking. A permanent monitoring of the contents of linked websites cannot be imposed without reasonable indications that there has been a violation of law. Illegal links will be removed immediately at the time we get knowledge of them.

Contents and compilations published on these websites by the providers are subject to German copyright laws. Reproduction, editing, distribution as well as the use of any kind outside the scope of the copyright law require a written permission of the author or originator. Downloads and copies of these websites are permitted for private use only.
The commercial use of our contents without permission of the originator is prohibited.

Copyright laws of third parties are respected as long as the contents on these websites do not originate from the provider. Contributions of third parties on this site are indicated as such. However, if you notice any violations of copyright law, please inform us. Such contents will be removed immediately.

Formulas of our magnetic calculators/computers
The formulas of our magnetic calculators have been prepared to the best of our knowledge and belief, but we cannot guarantee their correctness and calculation accuracy. If you have any suggestions for improvement, we would be pleased to hear from you.

Scalerist GmbH, D-53359 Rheinbach

Question ? If you have any questions about our magnetic calculator or our products, we look forward to hearing from you.