Invention Grant
- Patent Title: Projector
-
Application No.: US16875437Application Date: 1937-10-13
-
Publication No.: US2194366APublication Date: 1940-03-19
- Inventor: OTT HARVEY N
- Applicant: SPENCER LENS CO
- Assignee: Spencer Lens Co
- Current Assignee: Spencer Lens Co
- Priority: US16875437 1937-10-13
- Main IPC: G02B1/00
- IPC: G02B1/00
Public/Granted literature
- US11102700B2 Method and apparatus for device-to-device interconnected local area network Public/Granted day:2021-08-24
Information query
IPC分类:
| G | 物理 |
| G02 | 光学 |
| G02B | 光学元件、系统或仪器 |
| G02B1/00 | 按制造材料区分的光学元件；用于光学元件的光学涂层 |
