Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Film cartridge

Film cartridge

US Patent 4198134 · Granted Apr 15, 1980

Assignee

No assignee recorded.

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Method and apparatus for on-press color measurement1996
Uniformly thin, high efficiency large area lighting panel with two facet grooves1996
Flat panel display lighting system1996
Flat panel display lighting system1995
Flat, thin, uniform thickness large area light source1995
Can-measuring densitomer1993
Ink control system1991
Surgical valve assembly for urinary bladder irrigation and drainage1990
Ink control system1989
Precision valve assembly1985
Precision valve assembly1984
Desk drawer microfiche reader1982