Membership
Tour
Register
Log in
John A. Campbell
Follow
Person
Minneapolis, MN, US
People
Overview
Industries
Organizations
People
Information
Impact
Patents Grants
last 30 patents
Information
Patent Grant
Muffler assembly and method of manufacture
Patent number
4,969,537
Issue date
Nov 13, 1990
Donaldson Company, Inc.
Wayne M. Wagner
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information
Patent Grant
Exhaust system and muffler lap joint
Patent number
4,113,289
Issue date
Sep 12, 1978
Donaldson Company, Inc.
Wayne M. Wagner
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES