David Groesbeck

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Williamson, NY, US

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Patents Grantslast 30 patents

Information Patent Grant
Mechanism for opening and closing an overhead door including one wa...
- Patent number 11,441,347
- Issue date Sep 13, 2022
- Hall Labs LLC
- David R Hall
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information Patent Grant
System for adjusting the counterbalance of an overhead door
- Patent number 11,441,345
- Issue date Sep 13, 2022
- Hall Labs LLC
- David R Hall
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES

Patents Applicationslast 30 patents

Information Patent Application
MECHANISM FOR OPENING AND CLOSING AN OVERHEAD DOOR INCLUDING ONE WA...
- Publication number 20210270079
- Publication date Sep 2, 2021
- Hall Labs LLC
- David R. Hall
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information Patent Application
SYSTEM FOR ADJUSTING THE COUNTERBALANCE OF AN OVERHEAD DOOR
- Publication number 20210270067
- Publication date Sep 2, 2021
- Hall Labs LLC
- David R Hall
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES