In a two pipe system

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Patents Grantslast 30 patents

Information Patent Grant
Plumbing and heating pipe system for water supply purposes, made ei...
- Patent number 5,341,843
- Issue date Aug 30, 1994
- Rafeld Kunststofftechnik GmbH u. Co. KG.
- Karl Rafeld
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Plumbing and heating pipe system for water supply purposes, made ei...
- Patent number 5,286,001
- Issue date Feb 15, 1994
- Karl Rafeld KG Spritzgusswerk, Elektronik und Formenbau
- Karl Rafeld
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Modular heat installation for premises with water as a heat transmi...
- Patent number 5,111,875
- Issue date May 12, 1992
- Curt Hammarstedt
- F24 - HEATING RANGES VENTILATING
Information Patent Grant
Radiator valve
- Patent number 4,611,786
- Issue date Sep 16, 1986
- Danfoss A/S
- Hans Jorgensen
- F24 - HEATING RANGES VENTILATING
Information Patent Grant
3901438
- Patent number 3,901,438
- Issue date Aug 26, 1975
- F24 - HEATING RANGES VENTILATING
Information Patent Grant
2808994
- Patent number 2,808,994
- Issue date Oct 8, 1957
- F24 - HEATING RANGES VENTILATING
Information Patent Grant
1811406
- Patent number 1,811,406
- Issue date Jun 23, 1931
- F24 - HEATING RANGES VENTILATING
Information Patent Grant
1606109
- Patent number 1,606,109
- Issue date Nov 9, 1926
- F24 - HEATING RANGES VENTILATING