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Inventions and Web Addresses

We create inventions that are unique. We cover 3 creative areas: Medical, Construction, and Automotive. We development the patents. We sell patents for the inventions we have and can offer multi-licensing deals. We also sell web addresses owned by Martech21 Development, LLC and it's affiliates.

Our products and patents & sale and licensing of patents are what drives us.

We also offer space on our site for Company advertisements and web addresses. Please contact us for Advertisement space availability.

We look forward to negotiating and serving you!


Martech 21 Development, LLC.
6161 El Cajon Blvd #470
San Diego, CA 92115

(619) 750-6684

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Our site is always evolving...

Web addresses for sale:

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