Jerzy Gaszewski

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Warsaw, PL

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Patents Grantslast 30 patents

Information Patent Grant
Fastener for closing and sealing ends of pipes subjected to interna...
- Patent number 4,909,280
- Issue date Mar 20, 1990
- Instytut Chemii Przemyslowej
- Pawel Friedrich
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Method and a fastener for closing and sealing pipes subjected to in...
- Patent number 4,838,075
- Issue date Jun 13, 1989
- Instytut Chemii Przemyslowej
- Pawel Friedrich
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...