Title:
【発明の名称】マクロレンズ
Document Type and Number:
Japanese Patent JP2811447
Kind Code:
B2
Inventors:
Takehisa Koyama
Application Number:
JP14808388A
Publication Date:
October 15, 1998
Filing Date:
June 17, 1988
Export Citation:
Assignee:
Sigma Co., Ltd.
International Classes:
G02B9/64; (IPC1-7): G02B9/64
Domestic Patent References:
| JP62195617A | ||||
| JP62227111A | ||||
| JP6218513A | ||||
| JP61132916A | ||||
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| JP60188917A | ||||
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