having a concertina shape

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Patents Grantslast 30 patents

Information Patent Grant
Filter element with a luminescent marker
- Patent number 10,478,760
- Issue date Nov 19, 2019
- HYDAC FILTERTECHNIK GMBH
- Volkmar Klein
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
3053395
- Patent number 3,053,395
- Issue date Sep 11, 1962
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
2463137
- Patent number 2,463,137
- Issue date Mar 1, 1949
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
2372865
- Patent number 2,372,865
- Issue date Apr 3, 1945
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
2330625
- Patent number 2,330,625
- Issue date Sep 28, 1943
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
1696313
- Patent number 1,696,313
- Issue date Dec 25, 1928
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL