Bent sheet forming a single tube

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Patents Grantslast 30 patents

Information Patent Grant
1675796
- Patent number 1,675,796
- Issue date Jul 3, 1928
- F28 - HEAT EXCHANGE IN GENERAL
Information Patent Grant
1618980
- Patent number 1,618,980
- Issue date Mar 1, 1927
- F28 - HEAT EXCHANGE IN GENERAL
Information Patent Grant
1618279
- Patent number 1,618,279
- Issue date Feb 22, 1927
- F28 - HEAT EXCHANGE IN GENERAL
Information Patent Grant
1522404
- Patent number 1,522,404
- Issue date Jan 6, 1925
- F28 - HEAT EXCHANGE IN GENERAL
Information Patent Grant
1371996
- Patent number 1,371,996
- Issue date Mar 15, 1921
- F28 - HEAT EXCHANGE IN GENERAL
Information Patent Grant
1103011
- Patent number 1,103,011
- Issue date Jul 7, 1914
- F28 - HEAT EXCHANGE IN GENERAL
Information Patent Grant
1102366
- Patent number 1,102,366
- Issue date Jul 7, 1914
- F28 - HEAT EXCHANGE IN GENERAL
Information Patent Grant
964799
- Patent number 964,799
- Issue date Jul 19, 1910
- F28 - HEAT EXCHANGE IN GENERAL
Information Patent Grant
893921
- Patent number 893,921
- Issue date Jul 21, 1908
- F28 - HEAT EXCHANGE IN GENERAL
Information Patent Grant
790884
- Patent number 790,884
- Issue date May 30, 1905
- F28 - HEAT EXCHANGE IN GENERAL