Theodore E. Dahlen

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West Bend, WI, US

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Patents Grantslast 30 patents

Information Patent Grant
Optical structure for microfiche reader
- Patent number 4,111,537
- Issue date Sep 5, 1978
- Bell & Howell Company
- Thomas R. Wells
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Carriage mechanism for microfiche reader
- Patent number 4,105,312
- Issue date Aug 8, 1978
- Bell & Howell Company
- Thomas R. Wells
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Selector interlock for microfiche cartridge
- Patent number 4,054,378
- Issue date Oct 18, 1977
- Bell & Howell Company
- Thomas R. Wells
- B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER