Inventor

HELMSDERFER JOHN

US3 patents

Patents

3 patents

US9724708B2Aug 8, 2017

Garden watering device

HELMSDERFER JOHN13 citations79

US9597699B2Mar 21, 2017

Water flow metering device

HELMSDERFER JOHN10 citations77

US8739843B2Jun 3, 2014

Multi-functional and modular tree removal and maintenance apparatus and related methods

HELMSDERFER JOHN9 citations74