Issued Patents All Time
Showing 26–46 of 46 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4989330 | Overhead type file sheet projectors, and file sheets and jacket holders for use in such projectors | — | 1991-02-05 |
| D307667 | Case for receiving magnetic recording mediums | — | 1990-05-08 |
| D307513 | File sheet for magnetic recording carriers | — | 1990-05-01 |
| D307076 | Case for receiving magnetic recording mediums | — | 1990-04-10 |
| 4906091 | Glass stage and an overhead type projector system | — | 1990-03-06 |
| 4858355 | Method and apparatus for simultaneously inserting laminar materials into a file sheet | — | 1989-08-22 |
| 4836667 | Microscope | — | 1989-06-06 |
| 4817937 | Propulsion apparatus for a model of a flying object | — | 1989-04-04 |
| 4733485 | Desktop film viewer | — | 1988-03-29 |
| 4724956 | Information recording carrier-holding sheet | — | 1988-02-16 |
| 4691826 | Information recording carrier-holding frame | — | 1987-09-08 |
| 4635796 | Jacket for strip films | — | 1987-01-13 |
| 4602714 | Jacket for strip films | — | 1986-07-29 |
| 4563067 | Cooling device for overhead type slide projectors | — | 1986-01-07 |
| 4533048 | Film jacket | — | 1985-08-06 |
| 4533049 | Slide file sheet | — | 1985-08-06 |
| 4468873 | Desktop film viewer | — | 1984-09-04 |
| 4427727 | Sheet for holding transparencies | — | 1984-01-24 |
| 4343106 | Thin-piece holding structure and a slide filing sheet using that structure | — | 1982-08-10 |
| 4338006 | Overhead projector | — | 1982-07-06 |
| 4184754 | Overhead projector | — | 1980-01-22 |