Membership
Tour
Register
Log in
Daniel Franco
Follow
Person
Arlington, MA, US
People
Overview
Industries
Organizations
People
Information
Impact
Patents Grants
last 30 patents
Information
Patent Grant
Rotary valve
Patent number
3,989,025
Issue date
Nov 2, 1976
Daniel Franco
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES