Walter Spengler

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4105 Biel-Benken, CH

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Patents Grantslast 30 patents

Information Patent Grant
Process and apparatus for electrostatic substance transfer
- Patent number 5,829,355
- Issue date Nov 3, 1998
- Spengler Electronic AG
- Walter Spengler
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Printing unit with an electrostatic printing aid comprising electro...
- Patent number 4,539,908
- Issue date Sep 10, 1985
- Electronova S.A.
- Walter Spengler
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Apparatus and method for neutralizing static electric charges in se...
- Patent number 4,477,263
- Issue date Oct 16, 1984
- John D. Shaver
- F24 - HEATING RANGES VENTILATING