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Dive into the research topics where Douglas H. Pearson is active.

Publication


Featured researches published by Douglas H. Pearson.


Archive | 1998

Lens assembly with engageable lens retainer and lens mount

Douglas H. Pearson


Archive | 1989

Film mid roll interrupt protection for a camera using magnetic azimuth recording on film

Michael Lee Wash; Douglas H. Pearson; Richard R. Kelbe


Archive | 1996

One-time-use camera has driver for closing film cassette which is broken to disable camera after completed use

David C. Smart; Douglas H. Pearson


Archive | 2010

Ink jet ink cartridge with vented wick

Douglas H. Pearson; Stephen M. Neumann; Diana C. Petranek


Archive | 1996

Light shielding apparatus

Douglas H. Pearson


Archive | 2008

INCLINED FEATURE TO PROTECT PRINTHEAD FACE

Mario Joseph Ciminelli; Douglas H. Pearson; James E. Vianco


Archive | 1997

One-time-use camera with manual control lever and bi-directional overcenter spring for closing movable light shield of film cassette

Jude A. Sangregory; Douglas H. Pearson


Archive | 1996

Camera with film sensor and driver to initiate closing of cassette responsive to return of filmstrip to cassette

David C. Smart; Douglas H. Pearson


Archive | 2011

Sealing device for fluid reservoir

Diana C. Petranek; Douglas H. Pearson; Charles E. Follett; Mark D. Perkins


Archive | 1996

One-time-use camera has driver for closing film cassette which is removed with closed cassette to disable camera after completed use

David C. Smart; Douglas H. Pearson

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